Solving Quadratics By Graphing

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

Which is a zero of the graph?

• 0
• -1
• 1.5
• -3

Tags

CCSS.HSF-IF.C.7A

What are the roots of the function
f(x)= (x - 2)(x + 3)?

• x = - 2 or x = 3
• x = 2 or x = -3
• The are no real roots
• x = 2 or x = 3

Tags

CCSS.HSF-IF.C.7C

Calculate the roots of the quadratic.

• x = 6 and 3

• x = 1 and 0

• x = 0 and 3

• x = 3 and 1

Tags

CCSS.HSA-REI.B.4B

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

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

Which graph has the x intercepts of -2 and 1?

• y = 2x -1
• y = x²-2x +1
• y = x²+x-2
• y=x²-x-2

Tags

CCSS.HSF-IF.C.7A