SOLUTION: http://i46.tinypic.com/24ccmk4.png <picture to solve questions Use this graph to answer questions 28–29. 28. What is the equation for this line? 29. What is the slope of thi

Algebra ->  Linear-equations -> SOLUTION: http://i46.tinypic.com/24ccmk4.png <picture to solve questions Use this graph to answer questions 28–29. 28. What is the equation for this line? 29. What is the slope of thi      Log On


   

Question 312747: http://i46.tinypic.com/24ccmk4.png Use this graph to answer questions 28–29.
28. What is the equation for this line?
29. What is the slope of this line?
thank you Very much for your time,and help. :)
Found 2 solutions by Fombitz, vleith:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let's do the slope first.
Points (0,1) and (4,3) are on the line.
Calculate the slope using those two points.
m=%28y2-y1%29%2F%28x2-x1%29=%283-1%29%2F%284-0%29=2%2F4=1%2F2
Now use the point-slope form of a line,
y-yp=m%28x-xp%29
y-1=%281%2F2%29%28x-0%29
y=%281%2F2%29x%2B1

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Pick two points. This graph includes a point that is the y intercept. So let's use that.
y+=+mx+%2B+b where m is the slope and b is the y intecept
Use points (0,1) and (2,2)
The y intercept is 1 (as given by the point (0,1)). So b = 1
Now let's find the slope
m = (y2 - y1)/(x2-x1)
m = (2 -1)/(2-0) = 1/2
The equation for the line is y+=+%281%2F2%29x+%2B+1
and the slope is 1/2