Finding Zeros in Quadratic Function

What are the zeros of the function?

Find the zeroes of the quadratic equation

d² - 10d + 25 = 0

• d = -5 and d = +5

• d = 15 and d = -10

• d = -5 and d = 20

• d = 5

Which of these equations has zeros at 4 and -3?

• f(x) = x² + x - 12

• f(x) = x² - x + 12

• f(x) = x² - x - 12

• f(x) = x² + x + 12

• A

• B

• C

• D

Find the zero(s) of the function.

• x = 1

• x = -3

• x = {-1, 3}

• x = 2

What are the zeroes of this graph?

• x = -4 and 2

• x= -1 and 0

• x = 9 and -8

• x= 4 and -2

The graph of quadratic function f  is shown on the grid. What are the zeros of this function?

Select TWO correct answers.

Keith determines the zeroes of the function f(x) to be -6 and 5. What could be Keith's function?

• f(x) = (x + 5)(x + 6)

• f(x) = (x + 5)(x - 6)

• f(x) = (x - 5)(x + 6)

• f(x) = (x - 5)(x - 6)

What are the zeros of the parabola? 

• 1, 5

• 3, -5 

• 3, 0

• -6, 1