F^-1(x) is the inverse so...
f^-1(x) = (-1/5)x - 11/5
Y - y1 = m( x - x1); where m = (y2 - y1)/(x2 - x1);
We have m = (6-0)/(7-5) = 6 / 2 = 3 ;
The equation of the line is: y - 0 = 3(x-5);
Finally: y = 3x - 15.
Answer:
x = 20
Step-by-step explanation:
7x° + (x + 20)° = 180° (linear pair)
Solve for x
7x + x + 20 = 180
Add like terms
8x + 20 = 180
8x + 20 - 20 = 180 - 20
8x = 160
8x/8 = 160/8
x = 20
