SOLUTION: 20) Find the slope and the y-intercept. y = 4x + 2 Can someone please help. v/r Jess

Algebra ->  Linear-equations -> SOLUTION: 20) Find the slope and the y-intercept. y = 4x + 2 Can someone please help. v/r Jess      Log On


   

Question 148196: 20) Find the slope and the y-intercept.
y = 4x + 2
Can someone please help.
v/r
Jess
Found 3 solutions by mangopeeler07, jim_thompson5910, josmiceli:
Answer by mangopeeler07(462) About Me  (Show Source):
You can put this solution on YOUR website!
20) Find the slope and the y-intercept.
y = 4x + 2

this is easier than it looks. y=mx+b is the slope intercept form of an equation. m is the slope and b is the y-intercept. just substitute 4 for m and 2 for b and get the original equation y = 4x + 2. since 4 is m, then 4 is the slope. since 2 is b, then 2 is the y-intercept.

slope: 4
y-intercept: 2

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!


Notice how y=4x%2B2 is in slope-intercept form y=mx%2Bb where m is the slope and b is the y-intercept.

So this shows us that the slope is m=4 and the y-intercept is b=2 which is the point (0,2)

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You can always plot an equation like this to find intercepts
and slope. Each point requires an x and a y. My
way is to make x+=+0 and find y,
then I make y+=+0 and find x
y+=+4x+%2B+2
y+=+4%2A0+%2B+2 solve for y
y+=+2
the point is (0,2)
then,
0+=+4x+%2B+2 solve for x
subtract 2 from both sides
4x+=+-2
x+=+-%281%2F2%29
the point is (-%281%2F2%29,0)
--------------------
Once you have any two points, you can draw the line by connecting them
When the equation is in the form
y+=+mx+%2B+b
m = slope
b = y-intercept
So, your equation y+=+4x+%2B+2
m+=+4 (slope)
b+=+2 (y-intercept)
I'll plot it to check:
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+4x+%2B+2%29+