Free Printable SOS #7 Practice

1.

Convert to vertex form by COMPLETING THE SQUARE:

y = 2x² + 8x - 1

a)

y = 2(x + 2)² - 9

b)

y = (x + 2)² + 7

c)

y = 2(x + 2)² - 5

d)

y = 2(x + 2)² + 3

2.

Solve using the QUADRATIC FORMULA:

$2x^2+2x+5=0$

a)

$\frac{-1\pm3i}{2}$

b)

$\frac{-1\pm i\sqrt{11}}{2}$

c)

$\frac{2\pm\sqrt{40}}{4}$

d)

$\frac{-1\pm i\sqrt{6}}{2}$

3.

Which of the following is NOT a way to solve systems of Equations?

a)

Matrix Equation

b)

Elimination

c)

Factoring

d)

Graphing

e)

Cramers Rule

4.

Which of the following is NOT a method to solve a quadratic equation?

a)

Matrices

b)

Factoring

c)

Square Roots

d)

Complete the Square

e)

Graphing

5.

What's the axis of symmetry of y = 3x²- 2x + 1

a)

x= 1/3

b)

x= -1/6

c)

x= -1/3

d)

x= 1/6

6.

What's the axis of symmetry of y = -2( X - 3)( X + 4)

a)

x= 1/2

b)

x= -1/2

c)

x= -1/7

d)

x= 1/7

7.

Simplify 2i + 7i⁹

a)

2 + 7i

b)

2 - 7i

c)

9i

d)

-5i

8.

Simplify

$\left(-7\sqrt[]{2}\right)\left(3\sqrt[]{10}\right)$

a)

$-21\sqrt[]{5}$

b)

$-42\sqrt[]{5}$

c)

$-84\sqrt[]{5}$

d)

$-21\sqrt[]{2}$

9.

What is the vertex form of

y = 2x²- 4x + 5

a)

$y\ =\ 2\left(x-1\right)^2+7$

b)

$y\ =\ 2\left(x+1\right)^2+3$

c)

$y\ =\ 2\left(x-1\right)^2+3$

d)

$y\ =\ 2\left(x-1\right)^2+4$

10.

What is the MAXIMUM of:

f(x) = -23x² + 720x - 55

(round to the hundredth)

Calc Allowed

a)

(31.30, 45023.26)

b)

(-15.65, 16956.22)

c)

(31.30, -55)

d)

(15.65, 5579.78)

SOS #7 Practice

Total questions: 10

Worksheet time: 18mins

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