In coordinate geometry, the equation of the x-axis is
a. y = x
b. y = 0
c. x = 0
d. y = 1

Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?

Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?