Please I’m failing math please help me with this I will mark as brainliest

Answer:
Slope=3 y intercept=(0,-1) Second graph: Linear. Third graph: Non linear
Step-by-step explanation:
I recommend using math w ay algebra problem solver to get answer on the first question.
Answer:
1) slope = 3
y-intercept = -1
2) linear
non-linear
Step-by-step explanation:
In the equation y=mx+b, m is the slope and b is the y-intercept. The number next to the x will always be the slope, and the number after represents the y-intercept.
Linear graphs are always straight lines, the values are always constant.
Non-linear graphs are graphs with curves.