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+ CHAPTER 5 REVIEW + U-Haul charges $25 a day to rent a moving truck and $2 per mile. A) Write an equation that gives total cost as a function of the distance (miles). B) What is the cost to rent the truck if I travel 40 miles in 1 day? + A) y = 2x + 25 B) y = 2(40) + 25 = $105 + Write the equation of the line: + 3 y x3 5 + Write an equation of the line that passes through the given point and is perpendicular to the given line: (8, -1); y = 2x - 6 + 1 y x3 2 Remember to use the OPPOSITE AND RECIPROCAL SLOPE!! + Write the equation of a horizontal line that passes through the point: (2, 14) + y = 14 Remember, the slope is 0… so the equation is: y = 0x + 14, BUT! you can simplify that!! + Write an equation of the line that passes through the given point and is parallel to the given line: (2, 5); y = 4x + 9 + y = 4x – 3 **Steal the Slope: 4 + Write the equation for a linear function f with the given values: f(-2) = 4 and f(6) = 12 + y=x+6 Remember, 1 is the invisible number for multiplication! + Write an equation of the line that passes through the given points: (6, -5) and (6, 10) + x=6 **the slope is undefined!! + Write the equation in slopeintercept form: 10x – 5y = 20 + y = 2x – 4 **Solve for y!! + The table shows the points scored in basketball game. A) Make a scatterplot B) Write the equation of the line of best fit C) Use your equation to predict the number of points scored after 60 minutes (the entire game) Time (min) 2 10 22 38 Points 2 8 18 24 + Graph by writing in slopeintercept form. Then, identify the slope and y-intercept. 2x – 4y = 12 + Solve for y first! 1 y x3 2 1 Slope: 2 y – intercept: (0,– 3) + Graph by writing in slopeintercept form. Then, identify the slope and y-intercept. y = –4 + y = –4 y = mx + b y = 0x – 4 Slope: 0/1 or 0 y – intercept: (0,– 4)