Question

Let f(x)=−53x+4. Evaluate f(−1) without using a calculator.Do not include 'f(−1)=' in your answer.

Answer 1

From the question, given:

Let f(x) = -53x + 4

We are asked to evaluate f(-1) without using calculator.

f(x) = -53x + 4

f(-1) = -53(-1) + 4 (replace the value of x with -1)

= 53(1) + 4 (negative signs cancelling out)

= 53 + 4

= 57

Therefore, the answer is 57.