Find the equation of the line. Write the equation using function notation.

Through (-2,4); perpendicular to f(x)=-2x+3

The answer is 1/2x +5 but I dont know how they got that.

2nd question

Through (6,-6); parallel to 5x+6y=18

the answer is -5/6x-1

I got y=-5/6x-1

My teacher gave me the cheat sheet for the review to make sure when I study that I can correct them.