Question

F(x)=3x+b, if f(2)=-3, find b

Answer 1

Explanation:

f(2) = -3 means when x is 2, the f(x) is equal to -3. To solve b, we plugin in 2 into x, and plugin -3 for f(x), we get

f(x) = 3x + b

- 3 = 3(2) + b

- 3 = 6 + b

b = -9