Question

Which equation is in standard form?

A. -3(x + y) = 10

B. y = 4x + 2

C. 5x – y = 15

D. 0.5x + 6y = 1.9

Answer 1

5x - y = 15

The standard form of the equation of a line is

Ax + By = C

where A is a positive integer and B, C are integers

the only one that fits this description is C