What is the slope of a line perpendicular to the line whose equation is
x – 4y = –12. Fully reduce your answer.

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Using elimination, what is -4x+2y=-12 4x+8y=-24

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?