Solving Quadratics by Graphing

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

Tags

CCSS.HSF-IF.C.7A

Which of the following is a solution to the function?  (x - 8)(x - 9) = 0

• 8

• -9

• -17

• 0

Tags

CCSS.HSA-REI.B.4B

What are the x-intercepts of y = x² - 3x - 10?

• (-3, 0) and (-10, 0)

• (-5, 0) and (2, 0)

• (5, 0) and (-2, 0)

• (5, 2)

Tags

CCSS.HSF-IF.C.7A

What is another way to say "where a function crosses the x-axis"?

• x-intercept

• zero

• root

• all of these.

Tags

CCSS.HSF-IF.C.7C

Calculate the zeros of the quadratic.

• x = 2 and -3

• x = 0 and 9/4

• x = 0 and 4/9

• x = 1/2 and 1/3

Tags

CCSS.HSA-REI.B.4B

• -1 and 3
• 1 and -3
• -1 and -3
• 1 and 3

What  are the solutions of this graph?

• -2 and 3

• -1/2 and -6

• -2 and -6

• 3 and -6

What are the solutions?

• 0 and 8

• -2 and -4

• 3 and -1

• 2 and 4

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

For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

• Not Sure