SOLUTION: Find an equation in slope-intercept form passing through the points (-6.2,18.1) and (-3.4,18.1). I am not too sure of how to set up the equation. Here is what I think it should

Algebra ->  Coordinate-system -> SOLUTION: Find an equation in slope-intercept form passing through the points (-6.2,18.1) and (-3.4,18.1). I am not too sure of how to set up the equation. Here is what I think it should       Log On


   

Question 136348: Find an equation in slope-intercept form passing through the points (-6.2,18.1) and (-3.4,18.1).
I am not too sure of how to set up the equation. Here is what I think it should be.
m = y2 - y1/x2 - x1
m = 18.1 – 18.1/3.4 – (-6.2)
Thanks
Found 2 solutions by Earlsdon, checkley77:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Ok, you got a good start on finding the slope of the line:
m+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 Substitute the x- and y-coordinates from the given points, (-6.2, 18.1) and (-3.4, 18.1).
m+=+%2818.1-18.1%29%2F%28-3.4-%28-6.2%29%29
m+=+0 so now you have:
y+=+mx%2Bb Substitute m = 0
y+=+b To find the value of b, the y-intercept, substitute the y-coordinate from either of the given points.
18.1+=+b, so your equation is:
y+=+18.1 ...and there you have it!
This is the equation of a horizontal line that intercepts the y-axis at (0, 18.1)

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
m = y2 - y1/x2 - x1
m = 18.1 – 18.1/3.4 – (-6.2)
m=0/9.6 thuis is an herizontal line through (0,18.1).
y=18.1 is the equation.
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+20%2C+y+=+18.1+%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 20, y = 18.1).