Answer:
k = -14
Step-by-step explanation:
We should cross-multiply
9/(k - 7) = 6 / k
9*k = 6 * (k - 7)
9k = 6k - 42
9k - 6k = -42
3k = -42
k = -14
Answer:
yes they are inverserve of each other
Step-by-step explanation:
f(x) = y just for say
y=3x+9
switch the x and y value and solve for y
x=3y+9
x-9=3y
(x-9)/3 = y
inverserve of f(x) is g(X)
and now g(x) = y
y= (x-9)/3
switch x and y and solve for y
x=(y-9)/3
3x= y-9
3x+ 9 = y
inverserve of g(x) is f(X)
I believe it is quadratic parent function, i apologize if I'm incorrect.