SOLUTION: Im trying to help my daughter and I cannot remember how to do this. The problem is: y=-3x-3 y=x+5 What us the y-intercept for the 1st question? What is the slope for the 1s

Algebra ->  Coordinate-system -> SOLUTION: Im trying to help my daughter and I cannot remember how to do this. The problem is: y=-3x-3 y=x+5 What us the y-intercept for the 1st question? What is the slope for the 1s      Log On


   



Question 127852: Im trying to help my daughter and I cannot remember how to do this. The problem is:
y=-3x-3
y=x+5
What us the y-intercept for the 1st question?
What is the slope for the 1st question?
What is the y-intercept for the second question?
What is the slope for the second question?
Then graph problem... I remember this part.
Her class doesnt have textbooks that she can go back and review previous chapters for equations and formulas Ive tried to look for things on the net but I dont want to use the wrong ones. Thank you

Found 2 solutions by solver91311, josmiceli:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
Both of your equations are already in the slope-intercept form, y=mx%2Bb. The slope is the coefficient on x, and the y-intercept is the value of the constant term. Later, if you get one not in this form and need the same information, just solve the equation for y.

y=-3x-3, slope: -3, y-intercept: -3.

y=x%2B5, slope: 1 (if you don't have a coefficient, it is understood to be 1), y-intercept: 5

Red line is the first one, green is the second one.



Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
(1) y+=+-3x+-+3
(2) y+=+x+%2B+5
These equations are in the form y+=+mx+%2B+b. When they are
in that form, b is the y-intercept.
For (1), b+=+-3
For (2), b+=+5
In this form, m = slope
For (1), m+=+-3
For (2), m+=+1
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+-3x+-+3%2C+x+%2B+5%29