SOLUTION: y=x2+4x+3 Graph using Quadratic Equation. I have a calculator but I really don't know how to use it well. I know how to go to the Y= screen. How do you set this up and graph it.

Question 387209: y=x2+4x+3 Graph using Quadratic Equation. I have a calculator but I really don't know how to use it well. I know how to go to the Y= screen. How do you set this up and graph it.

I have one more question, Question Solve with the slope-intercept form of equation (-7,7) and(0,-3).
this is what I got.
(-7,7) (0,-3)
m=7-3/0-7
=4/-7=4/7
y=(4/7)x+b
using (0,-3) to solve for b
-3=b
y=(4/7)x-3 my answer
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
I think you lost a minus sign somewhere.
m=(-3-+7)/(0--7)
m=-10/+7
m=-10/7
----------------
y=-10/7x-3
make sure my work is good.
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