Practice - McGraw-Hill Higher Education

4-2NAME______________________________________________ DATE______________ PERIOD _____PracticeSlope and Direct VariationName the constant of variation for each equation. Then determine the slope of theline that passes through each pair of points.1. y2. y3.y 3 4 x(3, 4)(4, 3)(–2, 5)yy 5 2 x(0, 0)Ox(0, 0)Oy 4 3 xx(0, 0)OxGraph each equation.654. y 2x y 5. y x y6. y x53yOxOxOxWrite a direct variation equation that relates x and y. Assume that y variesdirectly as x. Then solve.7. If y 7.5 when x 0.5, find y when x 0.3.8. If y 80 when x 32, find x when y 100.39. If y when x 24, find y when x 12.4Write a direct variation equation that relates the variables. Then graph theequation.10. MEASURE The width W of a 11. TICKETS The total cost C of tickets isrectangle is two thirds of the length . $4.50 times the number of tickets t.WidthRectangle DimensionsW1086420 2 4 6 8 10 12 LengthCopyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.12. PRODUCE The cost of bananas varies directly with their weight. Miguel bought13 pounds of bananas for $1.12. Write an equation that relates the cost of the bananas21to their weight. Then find the cost of 4 pounds of bananas.4Chapter 4 16 Glencoe Algebra 1