197k views
5 votes
F(x) = 3x - 5x + 40: f(2).

User Zhuyxn
by
4.4k points

2 Answers

6 votes

Answer:

Y = 36 or F = -x+20

^ ^ ^ Not sure about what ur asking, so I put in 2 versions that I know of.

Explanation:

Write out the equation:

f(2) = 3x - 5x + 40

If X is 2, then write the equation out as:

Y = 3(2) - 5(2) + 40

Now multiply:

Y = 6 - 10 + 40

Simplify:

Y = 36

_____

Let's solve for f.

f(2)=3x−5x+40

Divide both sides by 2.

2f/2 = −2x+40/2

f=−x+20

Answer:

f=−x+20

User Andro
by
4.8k points
4 votes

Answer:

f(2) = 36

Explanation:

Hello!

To find f(x), plug in 2 for x in the original equation.

Solve:

  • f(x) = 3x - 5x + 40
  • f(2) = 3(2) - 5(2) + 40
  • f(2) = 6 - 10 + 40
  • f(2) = -4 + 40
  • f(2) = 36

The final solution is 36.

User Siddharth Sharma
by
6.2k points