SOLUTION: LEASE HELP I HAVE A QUIZ ON TUESDAY Okay, so lately I've been having trouble in Algebra. We're doing slopes and graphing them, and I get the basics. It's the more complicated stuff

Question 672815: LEASE HELP I HAVE A QUIZ ON TUESDAY Okay, so lately I've been having trouble in Algebra. We're doing slopes and graphing them, and I get the basics. It's the more complicated stuff I get confused on. y = mx+b 1.) y = x^2 - 1 2.) y = 5/2x - 3 3.) 2y = 4x + 8 4.) y = 2x^2 - 6 These are all graphing equations. If you could please explain how to tackle these problems and do them successfully, I'd be really happy! Thanks!
Found 2 solutions by Alan3354, MathLover1:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1.) y = x^2 - 1 2.) y = 5/2x - 3 3.) 2y = 4x + 8 4.) y = 2x^2 - 6 These are all graphing equations.
----------------
#2 & #3 are linear, so you need 2 points.
---------
y = 5/2x - 3
Pick 2 values for x and find y
Plot the 2 points, draw a line thru them.
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3.) 2y = 4x + 8
y = 2x+4
Same as #2
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The other 2 are 2nd order.
Plot as many points as you like, then draw a smooth curve thru them.

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

..... form where is a slope and is

1.)
...this is a quadratic formula and it is a parabola which doesn't have one slope, the slope is constantly changing as you move across the graph
and it has which is

2.)
.it's linear function and it has a slope
the slope is
is

3.)
...first write it in form

the slope is
is

4.)
...again,a quadratic formula and it is a parabola which doesn't have one slope
is

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