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Suzanna has already written 60 pages of a novel. She will write 10 more pages per month until completion. m= How things MOVE,how they CHANGE y = x + 10 ? m b= Where it BEGINS b 60 ? Suzanna has already written 60 pages of a novel. She will write 10 more pages per month until completion. m= How things MOVE,how they CHANGE y = x + 10 10 ? b= Where it BEGINS 60 ? 60 Suzanna has already written 60 pages of a novel. She will write 10 more pages per month until completion. To find total pages written after 4 months, Substitute 4 for the which variable? How things MOVE,how they CHANGE y = x + 10 Where it BEGINS 60 x y Suzanna has already written 60 pages of a novel. She will write 10 more pages per month until completion. Total pages written after 4 months How things MOVE,how they CHANGE y = (4)+ 10 pages Where it BEGINS 60 m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days How much does Phil make per day? How much $ does Phil BEGIN with? (Y-INTERCEPT) $ (SLOPE) $ m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days y = 10 y = 10x y = 0x + 10 y = 10x + 10 The equation is: Phil makes $10 per day (SLOPE) AND Phil BEGAN with $0 (Y-INTERCEPT) m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days Phil would make $20 in two days. How much would he make in 4 days? How much wouldhe make in 5 days? $ $ m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days Phil has $10 alreadyand he makes $5 per day. Days 0 2 6 4 $$$ 10 m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days How much did Phil make per day (slope) ? How much did Phil begin with (y-intercept) ? $ $ m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days Which rule describes this graph? y=x+10 y=5x+10 y=10x y=10x+10 m o n e y $50 $40 $30 $20 $10 0 Phil's Pay 1 2 3 4 5 Days Undefined (vertical) Negative Positive Zero This slope is: m o n e y $50 $40 $30 $20 $10 0 Lou's Pay 1 2 3 4 5 Days Lou HAD $40but he lost$10 per day. Positive The slope is: Zero Negative m o n e y $50 $40 $30 $20 $10 0 Lou's Pay 1 2 3 4 5 Days How much did Lou start with? $ How much did he lose per day? $ m o n e y $50 $40 $30 $20 $10 0 Lou's Pay 1 2 3 4 5 Days y = x+40 y =10x +40 y = -10x+40 y = -10x-40 Which rule describes this graph? FFFFFFFFFFFF IIIIIIIIIIIIIIIIIIIIII NNNNNNNNN IIIIIIIIIIIIIIIIIIIIIII TTTTTTTTTTT OOOOOOOOO |