Quadratic Word Problem Algebraically

Which quadratic expression represents the total number of tiles for each figure?

• x² + 2x + 2

• x² + 3x + 1

• x² + x + 2

• x² + 2x + 3

Which quadratic expression represents the total number of tiles for each figure?

• x² + 2x + 2

• x²

• x² - 2x - 2

• x² + 2x + 1

Which quadratic expression represents the pattern shown?

• x² + 3x + 4

• x² + 2x + 2 

• x² + 4x + 3 

• x² + 4x + 5 

An architect designing a rectangular patio wants to place a brick border on the outside with a width of x feet. The inside of the patio without the brick border will have dimensions of 8 feet by 13 feet. Together the patio with the border will have an area of 160 square feet. Write an equation that can be used to find x, the width of the brick border, and then solve your equation to the nearest tenth of a foot.

• about 1.2 ft.

• about 5 ft

• about 8.2 ft.

• about 11.7 ft.

The sum of the squares of two numbers is 130. If one number is 3 more than the other, what are the numbers?

• 5 and 8

• 6 and 7

• 7 and 9

• 8 and 9

The sum of a number and its square is 72. Find the number(s).

• 8 or 9

• 8 or -9

• -8 or 9

• -8 or -9

Tags

CCSS.8.EE.A.2

A contractor needs 54 square feet of brick to construct a rectangular walkway. The length of the walkway is 15 feet more than the width. Solve the equation to find the length and width.

A contractor needs 54 square feet of brick to construct a rectangular walkway. The length of the walkway is 15 feet more than the width. Write an equation that could be used to determine the dimensions of the walkway.

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t² + 8t + 24

How long would it take you to hit the water?

• 8 seconds

• 1 second

• 1.5 seconds

• 1/4 second

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t² + 8t + 24

When would you reach 16 feet above the water?

• 8 seconds

• 1 second

• 1/2 second

• 1/4 second