5.1 Test Review

The area of a rectangular garden is 150 ft². If the length is 4 less than width, write an equation that can be used to find the dimensions of the garden in terms of w, width. A=(length)(width)

• 150=(w-4)(w)

• 150=(L-4)(w)

• 150=(w+4)(w)

• 150=(L+4)(L)

Cristian wants to solve the equation x2 - 4x - 7 = -14 by using the factoring method. Which of the following should be his first step?

• Subtract 7 from both sides of the equation

• Add 14 to both sides of the equation

• Factor the expression x2 - 4x - 7

• Subtract 14 from both sides of the equation

Find the solutions given these factors:

(5x – 3)(x + 1) = 0

• x=3/5

  x=-1

• x=5/3

  x=-1

• x=-3/5

  x=1

• x=-5/3

  x=1

What are the x-intercepts if the roots are {-4, 6}:

• (0,-4) and (0,6)

• (-4,0) and (6,0)

• true

• false

• true

• false (because y equals 0)

• true

• false

• true

• false