Free Printable Review in Genmath

1.

What do you call a relation where each element in the domain is related to only one value in the range by some rules?

a)

Function

b)

Range

c)

Domain

d)

Relation

2.

Which of the following relations is a function?

a)

L={(1,2), (3,4),(1,7),(5,2)}

b)

O={(3,2),(2,1),(8,2),(5,7)}

c)

V={(4,1),(2,3),(2,6),(7,2)}

d)

E=(2,9),(3,4),(9,2),(6,7)

3.

In relation, what do you call the set of x-values or the inputs?

a)

Function

b)

Range

c)

Domain

d)

Relation

4.

Which of the following relations is NOT a function?

a)

The rule which assigns a capital city to each province.

b)

The rule which assigns a President to each country.

c)

The rule which assigns religion to each person.

d)

The rule which assigns tourist spot to each province.

5.

Johnny was paid a fixed rate of ₱ 100 a day for working in a Computer Shop and an additional ₱5.00 for every typing job he made. Find the fare function f(x) where x represents the number of typing job he made for the day.

a)

𝑓(𝑥)=100+5𝑥

b)

$𝑓(𝑥)=100−5𝑥$

c)

$𝑓(𝑥)=100𝑥$

d)

$f\left(x\right)=\frac{100}{5x}$

6.

Which of the following is NOT TRUE about function?

a)

Function is composed of two quantities where one depends on the other.

b)

One-to-one correspondence is a function.

c)

Many-to-one correspondence is a function.

d)

One-to-many correspondence is a function.

7.

Given the points C={(3, 5)(2, 4)(9, 0)(?, 6)}. What could replace the '?' to create a non-function?

a)

0

b)

4

c)

5

d)

9

8.

Which of the following LCD should be used in evaluating this function?

f\left(x\right)=x^2+3x+7\ \ if\ x=\frac{1}{3}

a)

1

b)

3

c)

6

d)

9

9.

Given the function below. Find (a ∘ d)(3).

d\left(x\right)=\sqrt{x^2+7}\ and\ a\left(x\right)=x+2

a)

3

b)

4

c)

5

d)

6

10.

Given the function below, what is the value of f(-2)?

f\left(x\right)=3x+7

a)

1

b)

-1

c)

-13

d)

13

11.

Which of the following function has a degree of 2?

a)

identity function

b)

linear function

c)

quadratic function

d)

cubic function

12.

Which of the following is an example of rational function?

a)

$f\left(x\right)=\frac{x}{x+3}$

b)

$f\left(x\right)=\frac{\sqrt{x}}{2}$

c)

$f\left(x\right)=\frac{2}{x^{-2}}$

d)

$f\left(x\right)=\frac{x^2+x-5}{\frac{2}{3}x+\sqrt{2x}}$

13.

A certain chocolate bar costs ₱50.00 per piece. However, if you buy more than 5 pieces they will mark down the price to ₱48.00 per piece. Use a piecewise function to represent the cost in terms of the number of chocolate bars bought.

How much are you going to pay if you buy 10 pieces?

a)

280

b)

380

c)

480

d)

500

14.

What is the inverse of

𝑓(𝑥)=5𝑥−20

?

a)

$𝑔(𝑥)=4+5x$

b)

$f^{-1}(𝑥)=\frac{4}{5}+x$

c)

$f^{-1}(𝑥)=\frac{20}{5}+x$

d)

$f^{-1}\left(x\right)=4+\frac{x}{5}$

15.

Find h(3)+d(2) if h(x)=x-1 and d(x)=7x+3.

a)

2

b)

5

c)

14

d)

19

Review in Genmath

Total questions: 15

Worksheet time: 15mins

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