9-1 Solving Quadratic Functions

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Tags

CCSS.HSF-IF.C.7A

Graph the quadratic function on your calculator.

Find the zeros.

5x² - 35x + 60 = 0

• x = 3,  -4

• x = -3,  4

• x = 3,  4

• x = -3,  -4

Graph the quadratic function on your calculator.

Find the zeros.

4x²+2x - 6 = 0

• x = 1 & -1.5

• x = -1 & 1.5

• x = 1

• x = -1.5

Graph the quadratic function on your calculator.

Find the zeros.

x²+4x-32=0

• x= -8, 4

• x= 8, -4

• x= -8, -4

• No solution

Graph the quadratic function on your calculator.

Find the zeros.

x²-14x-51=0

• x= 17, -3

• x= -17, 3

• x= -17, -3

• x = -3

Graph the quadratic function on your calculator.

Find the zeros.

x² - 5x = 14

• x= -7, -2

• x= 7, -2

• x= -7, 2

• No Solution

Graph the quadratic function on your calculator.

Find the zeros.

3x² + 9x = 30

• x= 2, -5

• x= 5, -2

• x= -5, -2

• x = 2, 5

Graph the quadratic function on your calculator.

Find the zeros.

x² - 6x + 8 = 0

• 2, 4

• -2, -4

• -2, 4

• 2, -4

• -1 and -2

• No Solution

• 2

• 1 and 2