B is the midpoint of AC. AB = 7x and BC = 4x + 6. Find AC.

AC = 28

Step-by-step explanation:

Because B is the midpoint of AC, AB and BC are equal in length. You can set these equations equal to each other to find x. 7x=4x+6 -> 3x=6 -> x=2. You can plug in x to AB's equation, 7x to get 14. This represents half of AC, so multiply it by 2 and you get 28 for the length of AC. Hope this helped!

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)