Question

If f(x)= –2x+3 then f(3) – f(4)=

Answer 1

Answer:

2

Step-by-step explanation:

Step 1: Solve for f(3)

• $f(3) = -2(3)+3$
• $f(3) = -6 + 3$
• $f(3) = -3$

Step 2: Solve for f(4)

• $f(4) = -2(4) + 3$
• $f(4) = -8 + 3$
• $f(4) = -5$

Step 3: Subtract f(4) from f(3).

• $f(3)-f(4)$
• $(-3)-(-5)$
• $-3 + 5$
• $2$

Therefore, the answer is 2.

Answer 2

Answer:

2

Step-by-step explanation:

F(3) means that we plug in 3 for the x value of the original equation, and F(4) means that we plug in 4 for the x value of the original equation

F(3) = -2(3) + 3

= -3

F(4) = -2(4) + 3

= -5

- 3 -(-5) = 2