Question

Which of the following equations represents a linear function?

x3 – y = –2


2x – 4y = 6


y =6x

y =4x−−√

Answer 1

Explanation:

The second and third functions are linear, since both x and y are to the first power.

The first function is cubic and does n ot count here.

The last function seems to involve the square root, and also does not count.