What do variables x and y represent? Use the phrase is a function of to describe how the quantities relate to each other?

What is perpendicular to y=-1/2x+11

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?