
Amar M.
asked 01/05/21A line on a coordinate plane passes through the point (4,6) and has a slope of -1.5
When the line passes through x=-2 what is the value of y?
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1 Expert Answer
Y - 6 = -3/2 ( x - 4 ) is the equation of the line.
You can simplify it to
y - 6 = -3/2 x + 6
y = -3/2 x + 12, now substitute in 2 for x
y = -3/2 ( 2 ) + 12
y = -3 + 12 or y = 9
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Good luck Dennis
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Martha M.
Hello Amar. Ok, this is the information you have, • slope (m) which is -1.5 • point (4, 6) Now, you want to know the value of y when x= -2, then you need to use the linear equation in the point-slope form because you have slope, a point, and the value of x for the second point. Slope= m=rise/run= (y2 -y1) / (x2 – x1) then you have, - 1.5= (y2 -6) / (-2-4) Solving, -1.5 (-2-4) = y2 -6 -1.5(-6) = y2 -6 9 = y2 -6 y2 =9+6 y2 =1501/08/21