SOLUTION: The slope of a line is -2 and the line contains the points (7,4) and (x,12). What is the value of x?
Algebra.Com
Question 1059008: The slope of a line is -2 and the line contains the points (7,4) and (x,12). What is the value of x?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The slope of a line is -2 and the line contains the points (7,4) and (x,12). What is the value of x?
------------------
Form:: y = mx + b
Using m = -2, x = 7 and y = 4, solve for "b"::
4 = -2*7 + b
b = 18
----
f(x) = -2x + 18
----
Ans:: using (x,12), solve for "x":
12 = -2x + 18
2x = 6
x = 3
--------------
Cheers,
Stan H.
---------------
RELATED QUESTIONS
the slope of a line is -2 and the line contains the points (7 4) and (x 12) what is the... (answered by ankor@dixie-net.com,greenestamps)
the slope of a line is a -2/t and the line contains the points (7.4) and (x,12) what is... (answered by Alan3354)
What is the slope of a line that contains the points(-2,-4)and (1,2)?
(answered by Alan3354)
What is the slope of the line that contains the points (3, -7) and (-4,... (answered by Fombitz)
What is the slope of the line that contains the points (-2, 5) and (7,... (answered by Jstrasner)
What is the slope of the line that contains the points (-3, -2) and (4,... (answered by EdenWolf)
What is the slope of a line that contains the coordinate points (7,-3) and... (answered by josmiceli)
What is the slope of the line that contains the points (3, 4) and (1,... (answered by jim_thompson5910,josmiceli)
What is the slope of the line that contains the points (3, -4) and (-1,... (answered by josgarithmetic)