Solve the problem.
-The linear equation in two variables y = 1100x + 2660 models the altitude above sea level, y, in feet, of an airplane x minutes after taking off from a high plateau. The equation indicates that the airplane's altitude is
Initially 2660 feet above sea level and increases 1100 feet each minute. Find a solution of y = 1100x + 2660 using
4 for x.
A) (4, 7060)
B) (4, 7160)
C) (4, 4400)
D) (4, 6960)

Question

Quizplus · Accepted Answer

Substituting x = 4 into the equation y = 1100x + 2660 gives y = 1100(4) + 2660 = 4400 + 2660 = 7060.

Solve the Problem. -The Linear Equation in Two Variables Y = 1100x