Write equations for the lines shown. Describe how to find the solution to the corresponding system by looking at the graph. Describe how to find the solution to the corresponding system by using the equations.

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

What is the equation of the parabola with focus (-1,-1) and directrix y=1?

Solve the equation for x. 50(4x + 12) = 200