Question

What is the domain of the function y = 8x + 3/4

a) All real numbers
b) All real numbers except x = 4
c) All real numbers except x = -3/8
d) All real numbers except x = 3/8

Answer 1

`y=(8x+3)/(4)=(8x)/(4)+(3)/(4)=2x+(3)/(4)`

It's a linear function y = mx + b. The domain of linear function is the set of all real numbers.

We have no objections to the value of x. x can be any number.

Therefore your answer is:

a) All real numbers.