Odd product : 7 * 13 = 91
even sum : 7 + 13 = 20
solution is : 7 and 13
15 is 3 times 5. The point (5, 0) is dilated to the point (15, 0) by using a factor of
K = 3.
Answer:
To find f-¹(x) of f(x) equate f(x) to y
That's
f(x) = y
So we have

Next interchange the variables that's x becomes y and y becomes x
That's

Next make y the subject
Cross multiply
We have
4y - 7 = 10x
Move -7 to the right side of the equation
4y = 10x + 7
Divide both sides by 4
We have the final answer as

So

Hope this helps you