Quadratic Intercepts and Zeroes

What are the zeroes/roots/intercepts of this function?

y = (x+9)(x-5)

• x = 9, x = -5

• x = 9, x = 5

• x = -9, x = -5

• x = -9, x = 5

What are the x-intercepts of this function?

• x = -1, x = 3

• x = 1, x = -3

• x = 1, x = 3

• x = -1, x = -3

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

What is another word for zeros?

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

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

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What is the green dot on the parabola called?

• maximum
• minumum
• roots
• zeros

A parabola is upside-down when a is:

• negative
• positive
• 0
• infinite