Finding Roots, Zeros, Solutions Quadratics

Use the graph to determine the solutions.

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

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

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

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

• 0, 5
• -2
• 0, -4
• no real solution

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

What are the zeros (x-intercepts)?

• x = 4, 7
• x = -1, 4/7
• x = -4/7, 1
• x = 7, -4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

True or false:
The solution, root, x-intercept, and zero of a problem 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

Tags

CCSS.HSF-IF.C.7A

Use the graph to determine the solutions.

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

Find the roots/zeros of x² + x - 2

• -1, 2
• -2, 1

Tags

CCSS.HSA-REI.B.4B

Find the roots/zeros of x² + 4x - 21

• -7, 3
• -3, 7

Tags

CCSS.HSA-REI.B.4B

Find the roots/zeros of x² - 3x - 10

• -2, 5
• -5, 2

Tags

CCSS.HSA-REI.B.4B