What is the slope of the line

The answer is -3

Step-by-step explanation:

You can find slope by finding  rise over run. We can use the points 3,0 and 1, -3.  We subtract the y inteceots and x intercepts in fraction form.

So the equations look like -3-0/1-0=-3/1=-3

a

step-by-step explanation:

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2