SOLUTION: A line through the points (x,2) and (7,9) has a slope of 7/3. Find x.
I think this is how to start. (7-2/7-x)=7/3
(7/7-x)=7/3
7-x-=7
-7 -7
_________
-x=0
-- --
Algebra.Com
Question 669074: A line through the points (x,2) and (7,9) has a slope of 7/3. Find x.
I think this is how to start. (7-2/7-x)=7/3
(7/7-x)=7/3
7-x-=7
-7 -7
_________
-x=0
-- --
- 1 -1
x=o
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
Using the slope of and the (7, 9) coordinates
...
y = mx+b
...
9 =
b = 9 -
...
Solve for x
2 =
Multiply the entire equation by 3
6 = 7x - 22
...
Isolate x
7x = 6 + 22
7x = 28
Divide both sides by 7
.....................
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