Quadratics

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

Tags

CCSS.HSA-REI.B.4B

What are the x-intercept/s of the function? 

• {x|x = 3}
• {x|x =-3,3}
• (3, 0)
• (-3, 0)&(3, 0)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

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

What are the solutions of this graph?

• -2 and 3
• -1/2 and -6
• -2 and -6
• 3 and -6

What is the vertex form of this quadratic?

• f(x) = -(x - 2)² + 0
• f(x) = (x - 2)² + 0
• f(x) = -(x + 2)² + 0
• f(x) = (x + 2)² + 0

Tags

CCSS.HSF-IF.C.7A

What should you do first if you wanted to solve this equation using the quadratic formula?

2x² + 6x - 14 = 8

• Divide everything by 2

• Write down: a=2, b=6, c=-14

• Subtract 8 from both sides

• Add 14 to both sides

Tags

CCSS.HSA-REI.B.4B

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Convert x²-9x+20 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

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.8.EE.A.2

Solve
x² + 2x - 24 = 0

• x = -6, x = 4
• x = 6, x = -4
• x = 12, x = -2
• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B