Zeros of a Function

Find the zero of the following function.

 $f\left(x\right)\ =\ 2x^2\ -\ 7x\ -\ 30$  

•  $\frac{-5}{2}$   , 6

•  $\frac{-5}{2}$  , -6

•  $\frac{5}{2}$  , 6

•  $\frac{5}{2}$  , -6

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Find the zero of the following function.

 $f\left(x\right)\ =\ 3x^2\ +\ 22x\ -\ 16$  

•  $\frac{-2}{3}$  , 8

•  $\frac{2}{3}$  , 8

•  $\frac{-2}{3}$  , -8

•  $\frac{2}{3}$ , -8

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Find the zero of the following function.

 $f\left(x\right)\ =\frac{x}{9x^2\ -\ 4}$  

• -9

• 0

• 4

•  $\frac{4}{9}$   

Tags

CCSS.HSA.REI.A.2

Find the zero of the following function.

 $f\left(x\right)\ =\frac{x^2\ -\ 9x\ +14}{4x}$  

• -2, -7

• -2, 7

• 2, 7

• 2, -7

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Find the zero of the following function.

 $f\left(x\right)\ =\ x^{3\ }-x$  

• 0, -1, 1

• 0, -1, -1

• -1, 1

• -1, -1

Tags

CCSS.HSA.APR.B.3

Find the zero of the following function.

 $f\left(x\right)\ =\ 9x^4\ -25x^2$  

•  $\frac{-5}{3}$  , $\frac{5}{3}$  

• 0,  $\frac{5}{3}$  , $\frac{5}{3}$  

• 0,  $\frac{-5}{3}$ ,  $\frac{-5}{3}$  

• 0,  $\frac{-5}{3}$  ,  $\frac{5}{3}$  

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3

Find the zero of the following function.

 $f\left(x\right)\ =\ x^2\ -9x\ +\ 20$  

• 4, 5

• -4, 5

• 4, -5

• -4, -5

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Find the zero of the following function.

 $f\left(x\right)\ =\ x^2\ -\ 2x\ -80$  

• 8, 10

• 8, -10

• -8, 10

• -8, -10

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Find the zero of the following function.

 $f\left(x\right)\ =\ \sqrt{2x}\ -\ 1$  

•  $\frac{-1}{2}$  

•  $\frac{1}{2}$  

• 2

• -2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.2

Find the zero of the following function.

 $f\left(x\right)\ =\ \sqrt{3x+2}$  

• 2

• 3

•  $\frac{2}{3}$  

•  $\frac{-2}{3}$  

Tags

CCSS.HSA.REI.A.2