Quadratic equations

What is the vertex of the parabola?

• (-1,0)
• (0,-3)
• (1,-4)
• (3,0)

Tags

CCSS.HSF-IF.C.7A

Which equation represents the axis of symmetry of the function y = -2x²+4x-6?

• y=1
• x=1
• x=3
• x=-3

Tags

CCSS.HSA.REI.B.4

What are the coordinates of the vertex of the graph of the function y=-x²+6x-11?

• (3,-2)

• (3,16)

• (-3,-29)

• (-3,-20)

What are the solutions of the equation x²+8x+15=0?

• X = {-5,-3}

• (-3,5)

• (-5,3)

• X ={3,5}

solve the equation (7x+2)(5x-4)=0 by using its factors to equal zero.

• X = {2,-4}

• X = {2/7 , 4/5}

• X = {-2/7 , 4/5}

• X = {-2, 4}

How many solutions are there for 5x²+7x-4=0?

• 0
• 1
• 2
• 3

What is the name of the graph of a quadratic equation?

• paramedic
• parabola
• ebola
• parentheses

Tags

CCSS.HSF-IF.C.7A

Find the solutions for the given equation.

• X = {-2, 4 }

• (-2, 4)

• Y = {-2,4}

• No real solutions

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 of the function f(x)=-2x²+4x+6 to find the solution(s) of the equation -2x²+4x+6=0.

• x=-1
• x=3
• x=-1 and x=3
• x=1and x=8