Weekly Math Quiz 4.4

Which equation matches y = 2x + 3?

• The cost of buying two shirts after a $3 discount

• The total amount of money you make after spending 3 on supplies and selling for 2 per item

• The total height of a 3 inch tree after it grows 2 inches per month.

• The amount of money in your bank account if you started with 2 and make 3 per day.

Tags

CCSS.HSF.LE.B.5

A car dealership calculates the total number of tires on the lot using the function t(c)=4c where c represents the number of cars. What is the independent quantity in this situation?

• The number of tires

• The number of tires per car

• The number of cars on the lot

• The number of cars sold

Tags

CCSS.6.EE.C.9

Function of the Day: y = .75x - 3. Complete the table for the given function. x = -2, 0, 2, 4.

• x = -2, y = -4.5;

  x = 0, y = -3;

  x = 2, y = -1.5;

  x = 4, y = 0.

• x = -2, y = -5;

  x = 0, y = -3;

  x = 2, y = -1;

  x = 4, y = 1.

• x = -2, y = -4;

  x = 0, y = -2;

  x = 2, y = -1;

  x = 4, y = 1.

• x = -2, y = -4.5;

  x = 0, y = -2.5;

  x = 2, y = -1.5;

  x = 4, y = 0.5.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Function of the Day: y = .75x - 3. Find f(5) and the y-intercept.

• f(5) = 0.75(5) - 3 = 0.75;

  y-intercept = -3.

• f(5) = 0.75(5) - 3 = 1.75;

  y-intercept = -3.

• f(5) = 0.75(5) - 3 = 0.75;

  y-intercept = 3.

• f(5) = 0.75(5) - 3 = 1.75;

  y-intercept = 3.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A painter charges 32 per hour for labor plus 50 for supplies. If the total charge was $338 how many hours did he spend painting?

• 5

• 7

• 9

• 11

Tags

CCSS.7.EE.B.4A

If f(x) = (2/3)x + 9x, what is the value of f(12)?

• 116

• 108

• 70

• 94

Tags

CCSS.HSF.IF.A.2

Function of the Day: y - 4 = -0.5(x + 3) Find f(5) and the y-intercept.

• f(5) = -0.5, y-intercept = 4

• f(5) = -3.5, y-intercept = 2.5

• f(5) = -2.5, y-intercept = 3

• f(5) = -4, y-intercept = 1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which inequality is equivalent to 8x - 3y > 11?

What is the value of x in the solution to the system of equations below? 8x + 4y = 4 4x - y = 8

• 1

• -2

• 2

Tags

CCSS.HSA.REI.C.9

An airplane’s altitude in feet during its descent can be found using the function f(x) = -200x + 20,000. After new government regulations become law the descent is now modeled by the function g(x) = -200x + 20,500. Which statement describes this change?

• The airplane starts its descent from an altitude 500 feet higher.

• The airplane starts its descent from an altitude 500 feet lower.

• The airplane descends 500 feet per horizontal mile faster.

• The airplane descends 500 feet per horizontal mile slower.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2