Algebra 1P Chapter 9 Test on Quadratics 2023

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• -4.9 and -0.1

• -8.54 and 8.54

• -0.45 and 3.55

• -6.77 and 1.77

Tags

CCSS.HSA-REI.B.4B

Convert x² - 9x + 20 = 0 to factored form and solve.

• (x-10)(x+2); x=-2, 10
• (x+4)(x+5); x=-5, -4
• (x-4)(x-5); x=4, 5
• Not factorable

Tags

CCSS.HSA-REI.B.4B

Find the y-intercept of y = 2x²-2x + 1

• (0, 2)
• (0, -2)
• (0, 1)
• (0, -1)

Tags

CCSS.HSF-IF.C.7A

Find the vertex (maximum or minimum) of 
y = -x² - 4x + 12.

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

Find the x-intercepts:  
y=5x²-16x+3

• x= -0.2 and x= -3
• x= 0.2 and x= 3
• x= -0.2 and x=3
• x= 0.2 and x= -3

Tags

CCSS.HSF-IF.C.7A

What is another name for the x-intercepts of a quadratic?

• y-intercept
• Zeros
• x-axis
• They don't have another name

Tags

CCSS.HSF-IF.C.7C

Find the axis of symmetry for
y = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

For the function y = -x² - 6x - 7, find the vertex and the axis of symmetry.

• Vertex (3, -2); axis of symmetry x = 3
• vertex (-3, 2); axis of symmetry x = 4
• vertex (-3, 2); axis of symmetry x = -3
• vertex (3, -2); axis of symmetry x = -4

Does the quadratic      y = - x² - 2x + 3  have a max/min vertex, and does the parabola open up/down?

• max/ opens down
• min/ opens up
• max/ opens up
• min/ opens down

Tags

CCSS.HSF-IF.C.7A

State the axis of symmetry and the vertex.  y = 2x² + 8x -3

• AOS x = -2;  V (-2, -27) 
• AOS x = 2; V (2, -11)
• AOS x = -2; V (-2, -11)
• AOS x = 2; V (2, 21)