Finding the Roots of Quadratic Equations

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

Tags

CCSS.HSF-IF.C.7C

True or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

• -2 and 10

• -2 and -10

• 2 and 10

• 2 and -10

Tags

CCSS.HSA-REI.B.4B

Use the graph of f(x) to determine the real solutions to f(x)=0.

• -10
• 2, 5
• 0, 7
• no real solution

What are the solutions?

• 0 and 8
• -2 and -4
• 3 and -1
• 2 and 4

Which is a zero of the graph?

• 0
• -1
• 1.5
• -3

Tags

CCSS.HSF-IF.C.7D

Use the graph to determine the solutions.

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

Find the x-intercepts, y-intercept, and vertex of the following graph:

• x-intercepts -3 and 3, y-intercept 1, vertex is (4, -1)

• x-intercepts -1 and 1, y-intercept 3, vertex is (-1, 4)

• x-intercepts -1 and 3, y-intercept -3, vertex is (1, -4)

• x-intercepts 1 and 3, y-intercept -3, vertex is (-4, 1)

Tags

CCSS.HSF-IF.C.7A

Name the zeros?

• (0, 0)

• (2, 4)

• (0, 0) and (0, 4)

• (0, 0) and (4, 0)

Tags

CCSS.HSF-IF.C.7C

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum
• opens up with a minimum
• opens down with a maximum
• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A