2 years ago

If f(×) = 3x + 7, which of these is the inverse of f(x)?

Mathematics

1 answer:

Snowcat [4.5K]2 years ago

5 0

Answer:

First equate 3x + 7 to any unknown

3x + 7 = P

Then make x the subject of the formula

3x + 7 = P

3x + 7-7= P-7

3x = P-7

3x ÷ 3 = (P-7) ÷ 3

x = (P-7) ÷3

Then interchange x with the unknown which I have as P

x = (P-7) ÷ 3

P = (x-7) ÷ 3

Then inverse of f(x)

is;

f-1(x) = (x-7) ÷ 3

Thank you.

BY GERALD GREAT.

You might be interested in

Question 1-3

Ann [662]

Answer:

Step-by-step explanation:

The angles x+35 and x+ 40 should equal to the angle supplementary to angle A. You get the equation 2x+75=x+110. You will want to get x alone on one side. First you have to subtract 75 to the right to get 2x=x+35 and then subtract x to the left. You get x=35. Hope this helped!

3 0

1 year ago

Brianna wants to buy a digital camera for a photography class. One store offers the camera for $48 down and a payment plan of $2

tatyana61 [14]

Answer:

the second store

Step-by-step explain: the second store is 244 but the first store is 300..i hope this helps. 14*12+76=244 and 21*12 + 48 is 300

7 0

3 years ago

Sadie decorated her prize horse with ribbons for the Memorial Day Parade. In the mane, she used 6 feet of ribbon. She used an ad

lidiya [134]

Sadie used 80 inches altogether