I really don't understand i need help asap. They were asking to find f(-8)

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

Use the distributive property -7(-2x+u-2)