Find Zeros of a Function

Which of the following represents the solutions to the equation:  
3x² + 4x – 20 = 0?

• 0 and -20

• 3.33 and -2

• -3.33 and 2

• -0.67 and -21.33

Tags

CCSS.HSA-REI.B.4B

The two solutions to y= 2x² - x - 3 are...

• 1 and 1.5

• -1 and 1.5

• -1 and -1.5

• 1 and -1.5

Tags

CCSS.HSA-REI.B.4B

Solve
2x² + 17x + 21 = 0

• x= ^-21/₂, -17

• x= ²/₃, 16

• x=-7, ^-3/₂

• x=15, -³/₇

Tags

CCSS.HSA-REI.B.4B

• f(x) = x² + 4x - 3

• f(x) = x² - 4x + 3

• f(x) = x² - 4x - 3

• f(x) = x² + 4x + 3

Tags

CCSS.HSF-IF.C.7A

• f(x) = -x² + 9x - 8

• f(x) = -x² - 9x + 8

• f(x) = -x² - 9x - 8

• f(x) = -x² + 9x + 8

Tags

CCSS.HSF-IF.C.7A

Which of these equations has zeros at 5 and 2?

• f(x) = x² + 7x - 10

• f(x) = x² - 7x + 10

• f(x) = x² - 7x - 10

• f(x) = x² + 7x + 10

Tags

CCSS.HSA.APR.B.3

Which of these equations has zeros at -6 and -4?

• f(x) = x² + 10x - 24

• f(x) = x² - 10x + 24

• f(x) = x² - 10x - 24

• f(x) = x² + 10x + 24

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Which of these equations has zeros at 7 and 6?

• f(x) = x² + 13x - 42

• f(x) = x² - 13x + 42

• f(x) = x² - 13x - 42

• f(x) = x² + 13x + 42

Tags

CCSS.HSA.APR.B.3

Which of these equations has zeros at -9 and 3?

• f(x) = x² + 6x - 27

• f(x) = x² - 6x + 27

• f(x) = x² - 6x - 27

• f(x) = x² + 6x + 27

Tags

CCSS.HSA.APR.B.3

Between what two values of x is one of the solutions of the following graph?

• 1 and 2

• -2 and -1

• 3 and 4

• 0 and 1