SOLUTION: I have a problem that has (1,5) and (2,7) i have to figure out what the equation is for the slope-intercept form.

Question 19192: I have a problem that has (1,5) and (2,7) i have to figure out what the equation is for the slope-intercept form.
Found 2 solutions by jakegfan, Earlsdon:
Answer by jakegfan(4) (Show Source): You can put this solution on YOUR website!
Okay the slope intercept form is y=mx+b
To find the slope or m
you take the y out of the second set of number subtracted by the y in the first set of numbers then divide it by x out of the second set of numbers subtracted by the first x of the first set of numbers it will look like this

7-5/2-1 or 2 over 1 or 2
so far you have y=2x+b
then you have to figure out b
so you plug in coordinates
5=2(1)+b
5=2+b
you take 5 subtracted by 2
so 3=b
so your equation is y=2x+3

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Recall that the slope-intercept form of the equation for a line is: y = mx+b where m is the slope and b is the y-intercept.
First, find the slope using the two given points:

(x1, y1) = (1, 5)
(x2, y2) = (2, 7)

So now you can write: but you need to find the value of b, the y-intercept.
Use the x- and y-coordintes of any one of the two given points, substitute these into the above equation and solve for b. Using the first point (1, 5),
Subtract 2 from both sides.

Now you can write the final equation:

RELATED QUESTIONS
It has been 17 years since I have taken Algebra and now I am taking College Algebra. My... (answered by rapaljer)
I need help with this problem, I have been trying to figure it out but im stumped. This... (answered by stanbon)
Can you please help me with this problem? I have to write the equation of a line in... (answered by oberobic)
I can figure out how to find a slope of a line, but in the slope intercept form, I get... (answered by jim_thompson5910)
I REALLY need help with parallel & Perpendicular lines! Here's what it says: Write an... (answered by ankor@dixie-net.com)
I need help trying to solve this problem. Thank you in advance, for helping me out. I... (answered by josgarithmetic)
Write the equation of a line that goes through the point (−8,2) and is parallel to the... (answered by josgarithmetic,greenestamps)
I need help: I have the formulas I just do not know how to apply them correctly. Here is (answered by venugopalramana)
I have a problem that are driving me crazy. The problem has a quadratic solution, but for (answered by jim_thompson5910)