Solving Quadratic Equations Final Exam Review #4

If the graph of a quadratic does not intercept the x axis at any point, then it has:

• 1 Real Solution

• 2 Real Solutions

• 2 Imaginary Solutions

Solve the quadratic equation.

• x = {1.5, -1.5}

• x = 1.5

• x = {1, -1}

• x = {1, 4}

Solve the quadratic equation.

• x = {-3, 4}

• x = {3, 4}

• x = {-4, -3}

• x = -3

Solve the quadratic equation:

4x² - 6 = -2x

• x = 1, -1.5

• x = -1, 1.5

• x = $\frac{-2\pm\sqrt{92}}{8}$

• $x\ =\ \frac{-2\pm\sqrt{100}}{8}$

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

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Tags

CCSS.HSA-REI.B.4B

Solve.

x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Solve.
 $2x^2+6x=7$ 

•  $x=\frac{-3\pm\sqrt{5}}{2}$  

•  $x=\frac{-3\pm i\sqrt{5}}{2}$  

•  $x=\frac{-3+\sqrt{23}}{2}$  

Solve:

 x²−2x+11=0

• $x=1±i\sqrt{10}$

• $x=1±\sqrt{10}$

• $x=-1±i\sqrt{10}$

• $x=-1±\sqrt{10}$

Solve::

 $2x^2-x=3$  

•  $x=-\frac{3}{2},\ 1$  

•  $x=-1,\ \frac{3}{2}$  

•  $x=-\frac{3}{2},\ -1$  

•  $x=1,\ \frac{3}{2}$