A system of linear equations is shown below. y= 2x + 1
y = - 1/4x + 3

Which equation can be used to determine the value of x for the solution?

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

Solve the formula ax+ by = c for x.

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?