Question

Find the output for f(x)=−3x+4 when x=−5.

A) 19
B) -19
C) 31
D) -31

Answer 1

The output for f(x) = -3x + 4 when x = -5 is 19. Therefore, the correct option is A.

Step-by-step explanation:

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

To find the output for f(x) = -3x + 4 when x = -5, we need to substitute the value of x into the equation and perform the necessary calculations.

So, when x = -5, the expression becomes:

f(-5) = -3(-5) + 4

= 15 + 4

= 19

Therefore, the correct option is A.