Distance learning week 3 quiz- Algebra 1

What is the formula for intercept form?

• Ax + By = C

• y=a(x-p)(x-q)

• y=mx+b

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

Tags

CCSS.HSA.CED.A.1

What are the green dots called?

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

Tags

CCSS.HSF-IF.C.7A

What is the factored form of this equation? y=-2x^2+14x-20. If you watched the video this should be easy :).

• Max

• x=2; x=5

• y=-2(x-2)(x-5)

What are the x-intercepts of this equation? y=-2x^2+14x-20. If you watched the video this should be easy :).

• (2,0)(5,0)

• Max

• x=32

What is the factored form of x^2+9x+20. It's an easy one if you watched Ms. Quigley's video.

• 1,762

• x=-4 and x=5

• (x+4)(x+5)

What is the solutions, zeros, roots, and x intercepts of x^2+9x+20. It's an easy one if you watched Ms. Quigley's video.

• x=-4, x=-5

• (x+4)(x+5)

• 1,762

Does this graph slope up or down. x^2+9x+20, hint use desmos.

• up

• down

What are the x-intercepts of the parabola?

y = -3(x + 5)(x - 9)

• (-5, 0) and (9, 0)

• (5,0) and (-9, 0)

• (5, 0) and (9, 0)

• (-3, 0) and (5, 0)and (-9, 0)

Tags

CCSS.HSF-IF.C.7A

What are the x-intercepts of the parabola?

y = ¼(x + 2)(x - 6)

• (-2, 0) and (6, 0)

• (2, 0) and (-6, 0)

• (-2, 6)

• (¼, 0) and (-2, 0) and (6, 0)

Tags

CCSS.HSF-IF.C.7A