A line with a slope of 1/4 passes through the points (9, -8) and (5, d). what is the value for?
2 answers:
d + 8 = 1/4(x-9)
d + 8 = 1/4x - 9/4
- 8 - 8
------------------------------
d = 1/4x - 17
I just realized that this is not the answer you are looking for. It's an equation, not a value. Sorry about that.
Answer:d = -9
Explanation:The slope of the line can be calculated using the following formula:
slope =
We are given:slope =
point (9,-8) representing (x1,y1)
point (5,d) representing (x2,y2)
Substitute with the givens in the above equation and solve for d as follows:slope =
=
=
4(d+8) = -4
d + 8 = -1
d = -1 - 8
d = -9
Hope this helps :)
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