111k views
3 votes
5. The domain of f(x) = -2x + 1 is {-4, -1, 0, 2}. Find the range.

1 Answer

5 votes
Answer: Range = { 9, 3, 1, -3}

Step-by-step explanation:

The function is f(x) = -2x + 1

Domain = {-4, -1, 0, 2}

Note that the domain is a set of of all the values of x ( i.e. the independent variable)

The range is a set of the corresponding value of f(x) for each value of x in the domain.

For x = -4

f(-4) = -2(-4) + 1 = 8 + 1

f(-4) = 9

f(-1) = -2(-1) + 1 = 2 + 1

f(-1) = 3

f(0) = -2(0) + 1 = 0 + 1

f(0) = 1

f(2) = -2(2) + 1 = -4 + 1

f(2) = -3

Therefore the set of all the values above which is the range will be given as:

Range = { 9, 3, 1, -3}

User Miguel Conde
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories