Question

Which equation represents the graph of the linear function?

A.
y = −3x + 1

B.
y = −3x − 1

C.
y = 3x + 1

D.
y = 3x − 1

Answer 1

Equation D

The y intercept of the line is (0,-1). This would make the last number a negative one as well. The line's directionis positive so the only equation that fits is D

Answer 2

The y intercept in this graph is (0,1) ad the only equations that fit this are a and c.
To figure out whether it is a or c, find the slope. The line of the equation is going up, so he slope is positive. Equation c has the positive slope.
EQUATION C