Free Printable Extra Credit Final Quiz

1.

$\left(15x^2+7xy+y^2\right)+\left(-10x^2+14xy-6y^2\right)$ In the simplified expression what is the coefficient of $x^2$ ?

a)

25

b)

-5

c)

-25

d)

5

2.

$\left(15x^2+7xy+y^2\right)+\left(-10x^2+14xy-6y^2\right)$ In the simplified expression what is the coefficient of $y^2$ ?

a)

-6

b)

-5

c)

-7

d)

5

3.

$\left(x-3\right)\left(x+4\right)\$ In the expanded (distributed) form what is the coefficient of x?

a)

-3

b)

7

c)

1

d)

4

4.

$\left(x-3\right)\left(x+4\right)\$ In the expanded (distributed) form what is c?

a)

-3

b)

4

c)

-1

d)

-12

5.

$\left(x-3\right)\left(x+4\right)\$ What are the x-intercepts of this parabola?

a)

-3,4

b)

-4, 3

c)

7,-7

d)

-1,-4

6.

$\left(x-3\right)\left(x+4\right)\$ What is the vertex of this parabola?

a)

-0.5, -12.25

b)

-4.5, -0.5

c)

0.5,-7

d)

-0.5,-7

7.

A deposit of $23,000 in an account pays 8.25% interest com-

pounded quarterly. What is the rate of increase?

a)

4

b)

30,590

c)

.0825

d)

8.25%

8.

A deposit of $23,000 in an account pays 8.25% interest com-

pounded quarterly. What is n?

a)

4

b)

30,590

c)

.0825

d)

8.25%

9.

$f\left(x\right)=2^x+4$

What is the average rate of change between x = 1 and x = 3 of the function?

a)

12

b)

3

c)

6

d)

3/2

10.

Which function has the fastest rate of change?

a)

f(x) = 2x + 3

b)

f(x) = 2x² + 3

c)

f(x) = 2^x + 3

d)

f(x) = 2^2x + 3

Extra Credit Final Quiz

Total questions: 10

Worksheet time: 12mins

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