Which equation represents a linear function?

equation 1: y = 2x2 + 1
equation 2: y2 = 8x + 1
equation 3: y = 5x3 – 1
equation 4: y = 7x – 1

a) equation 1
b) equation 2
c) equation 3
d)equation 4

answer: the four parts of the "australian ballot" 1. the ballot paper is printed at public expense. 2. the ballot paper lists all candidates by position, as well as any other propositions. 3. ballot papers are distributed only at the polling place. 4. ballot papers are filled out by the voter in private. (secret ballot).

yes its like krisnis like in the air force .

u don't know that wow good luck tho bud