NO EXPLAINATIION HELP FAST PLEASEEE
(07.05A)


Which of the following has a graph that is a straight line?


Equation 1: y = 2x + 7

Equation 2: y2 = x − 1

Equation 3: y = 2x2 + 4

Equation 4: y = 3x3



HELP FAST NO EXPLAINATION NEEDED