ANSWER and EXPLANATION
We are given the function:
f(x) = -3x + 5
We want to complete the table by using the given values to find the missing ones.
1ST ROW
We have that x = -7, put that in the function:
f(-7) = -3(-7) + 5 = 21 + 5
f(-7) = 26
2ND ROW
We have that f(x) = -1, so replace f(x) with -1:
-1 = -3x + 5
-3x = -1 - 5
-3x = - 6
x = -6 / -3
x = 2
3RD ROW
We have that f(x) = 29, so replace f(x) with 29:
29 = -3x + 5
-3x = 29 - 5
-3x = 24
x = 24 / -3
x = -8
4TH ROW
We have that x = 3, so put that in the function:
f(3) = -3(3) + 5
f(3) = -9 + 5
f(3) = -4