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If f (x) = 3x − 4, Find f (−1) Helpp

User DeltaG
by
7.2k points

2 Answers

5 votes

Answer:

f(-1)= -7

Explanation:

We are given the function:

f(x)=3x-4

We want to find f(-1). We must plug -1 in for x and solve.

f(-1)= 3(-1)-4

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.

Multiply 3 and -1.

f(-1)= -3 -4

Subtract 4 from -3.

f(-1)= -7

f(-1) is equal to -7.

User Karl Strings
by
7.1k points
4 votes

Answer:

f(x) = 3x-4

f(-1)= 3(-1) -4

f(-1) = -3-4

= -7

hope this helps uh!

User Thijs Van Dien
by
6.8k points