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Look at the graphed function shown. Based on the zeros, which best represents the graphed function? A y = (x - 3)(2x + 2) C y = 2(x + 3)(x - 1) B y = (2x +6)(x + 1) D y = 2(x - 3)(x - 1) Travis would like to buy some toys to donate to charity. He plans to buy 9 dolls at d dollars each, 2 toy cars at c dollars each, and 3 train sets at t dollars each. Which expression represents the total cost, in dollars, of these items that Travis wants to buy? A 9c + 2t + 3d B 9d - 2c - 3t C 9d + 2c + 3t D 9c - 2t - 3d Which expression is equivalent to ? Assume the denominator does not equal zero. A 2c5d3 C 2c11d15 D 9c11d15 B 9c5d3 18c8d9 9c3d6 Directions: Click below a box to choose each expression you want to select. You must select all correct expressions. Identify each expression that is a factor of this polynomial. A B C D E A Look at this key. Which model correctly represents the product of (x + 3) and (x + 4)? B C D What is √18 written in simplest radical form? A 2√3 B 3√2 C 3√6 D 6√3 Which binomial is a factor of c2 - 12c + 32 C c - 2 A c -12 B c - 8 D c - 1 What is the value of this expression when x = A C 16 3 4 3 x2 + 3x - 2 B D 40 9 4 9 2 3 ? Which expression is equivalent to (3x-4)2(5x-2)? A C 30 x10 45 x10 B D 30x14 45x14 Which polynomial is equivalent to (18n2 - 9n + 1) ÷ (3n -1)? Assume the divisor is not equal to zero. A 6n -1 B 6n + 1 C 6n2 -3 D 18n2 -3 Directions: Type your answer in the box. What is the value of this expression when a = 64 and b = -5? When n > 0, which expression is equivalent to √42n9 in simplest form? A n3√42 B n4√42n C 6n3√7 D 6n4√7n Look at the system of equations. What is the value of x for the solution to this system of equations? A -5 B -3 D 5 C 3 Pierre solved an inequality as shown. What property justifies the work between Step 3 and Step 4? A Inverse property of addition B Identity property of addition C Addition property of inequality D Commutative property of addition Which property of real numbers justifies the work shown? A Commutative property of addition B Associative property of addition C Identity property of addition D Distributive property What is the slope of the line represented by x + 3y = 3? A B -1 8 -1 24 1 8 C D 1 24 1 8 Directions: Type the solution for x in the box. Pay attention to the inequality symbol. Solve for x: -2x + 6 < x - 6 x > A Which graph best models y ≤ x - 2? B C D 2 7 Which inequality represents all the solutions of 9(4x -8) < 4(6x + 9)? A x < -3 B x > -3 C x < 9 D x > 9 A total of 243 adults and children are at a movie theater. There are 109 more adults than children in the theater. If a represents the number of adults and b represents the number of children, which system of equations could be used to find the number of adults and the number of children in the theater? A B C D Directions: Click below the box to choose each point you want to select. You must select all correct points. From the given points, select each point that is a solution to this system of inequalities. A system of inequalities is shown. A B C D The graph of line n is shown. Which number is closest in value to the slope of line n? A -4 B -¼ C ¼ D 4 The formula shown can be used to find A, the amount of money Raul has in his saving account. A = P + Prt Raul wants to find r, the rate of interest his money earns. Which equation is correctly solved for r? A r = APt B r = A - 2Pt C r = D r = A 2Pt A - P Pt What are the real roots of x2 - 7x + 10 = 0? A 2 and 5 B 1 and 10 C -1 and -10 D -2 and -5 A data set with an even number of data points is ordered from least to greatest. The middle two data points are represented by x1 and x2. This formula can be used to find the median of the data set. Which shows this formula solved for x1? m = x1 + x2 2 B C D A Which equation represents the horizontal line passing through (7, 5)? A x = 5 B y = 5 C x = 7 D y = 7 A x = 1 and x = -9 C x = -2 and x = 4 D x = -4 and x = 2 The graph of y = x2 - 2x - 8 is shown. What are the solutions to x2 - 2x - 8 = 0? B x = 0 and x = -8 What value of p will make this equation true? A -10 B -6 C 2 D 10 6p + 4 6 = 4p - 8 3 Directions: Type your answer in the box as a fraction in simplest form. What is the slope of the line represented by this equation? Slope = 3x +5y = -7 The length, l, of a rectangle is 3 times its width. The perimeter of the rectangle is greater than 48cm. Which inequality expresses all the possible lengths, in cm, of the retangle? A l > 6 B l > 12 C l > 18 D l > 36 The box-and-whisker plots summerize the percent of the workforce employed in agriculture, industry, and service jobs in twenty towns. C Agriculture has the range with the greatest value. D Industry has the interquartile range with the least value. A Industry has the greatest median value B Service has the range with the least value. Which statement is NOT true? Select all the points that would be apart of a domain of {-1, 2, 4}. (-3, -1) (-1, 0) (-2, 2) (4, -2) (3, 4) (2, 3) The relation is an inverse variation. {(-1, 8), (4, -2), (-2, 4)} Which equation represents this relation? A y = -3x + 5 B y = -2x C y = D y = x -8 -8 x Which equation represents the pattern shown in the table? A y = -3x - 19 B y = -x - 13 D y = 3x -1 C y = x - 1 The graph of the equation representing a direct variation passes through point A. Select two points that would be on the graph of this equation. (0, 0) (4, 3) (3, 3) (6, 8) (-3, -4) Look at the date in this table. Which equation most closely represents the line of best fit for this data? C y = 0.5x B y = 0.56x - 0.05 D y = 2x A y = 1.77x + 0.13 What is the range of this relation? C {y| -4 ≤ y ≤ 4} A {x| -3 ≤ x ≤ 3} B {-3, -2, 0, 3} D {-4, 0, 2, 4} Katie recorded the number of miles she drove for each of 9 days. She drove a different number of mile each day. The box-and-wisker plot summarizes her information. Katie drove 30 miles on each of two additional days. She redrew the box-and-wisker plot to include this data. Which statement must be true? D The value of the interquartile range increased. C The value of the median remained the same. A The value of the range decreased. B The value of the mean remained the same. Two relationships are described. Relationship S: Karen drove 160 miles in 4 hours, and then she drove 80 miles in 2 hours. Relationship T: Vernon cooked 6 hamburgers in 10 minutes, and then he cooked 9 hamburgers in 15 minutes Which statement is true about these relationship? A Neither relationship is a direct variation. B Both relationships are direct variations. C Only Relationship S is a direct variation. D Only Relationship T is a direct variation. Select all the points that are an x- or y- intercept for the graph of the function. (-1, 0) (5, 0) (0, 0) (0, 5) (0, -1) (2, 9) What is f(-8) for the function f? A -56 B -88 f(x) = 11(x - 24) 2 D -352 C -176 The number of complaints a company received at the end of each of six weeks is shown in this table. Based on the line of best fit, how many complaints should the company expect at the end of week 8? B 91 A 75 C 96 D 110 The table shows the relationship between corresponding values of x and y. To determine the y-value - D divide the x-value by 3 and subtract 1 B subtract 3 from the x-value C divide the x-value by 3 and add 1 A add 3 to the x-value Which relation is a function? A {(-3, 3), (5, 5), (-3, 2), (5, 3)} B C D D invalid because the standard deviation for Week 1 was less than the standard deviation for Week 2 C invalid because the mean for Week 1 was less than the mean for Week 2 A valid because the mean for Week 2 was greater than the mean for Week 1 B valid because the standard deviation for Week 2 was greater than the standard deviation for Week 1 The manager concluded that there was more variation in the number of hours worked for Week 2 than Week 1. The manager's conclusion was - The manager of a company recorded the number of hours his employees worked during each of two weeks.The following statistics were calculated. Week 1: The mean was 35 hours with a standard deviation of 1.5 hours. Week 2: The mean was 40 hours with a standard deviation of 2.0 hours. Which graph appears to show a relation that is NOT a function? A B D C A scientist dropped an object from a height of 200 feet. She recorded the height of the object in 0.5-second intervals. Her data is shown. Based on a quadratic model, which best approzimates the heigth at 3 seconds? A 52 feet B 55 feet C 65 feet D 80 feet Look at function g. Which set contains only the zeros of function g? C B D A g(x) = 9x2 - 16 Statistical information for a data set is given. What is the standard deviation for this data set? The mean is 18.1 The z-score for 13.0 is -1.7 A 1.7 B 3.0 C 3.4 D 5.1 A representation of a function is shown. What are the x-intercept and the y-intercept of this function? D A C B f(x) = -4x + 2 |