Question
Find a number $t$ such that the line in the $x y$ plane containing the points $(-3, t)$ and (4,3) is perpendicular to the line $y=-5 x+999$.
Step 1
The slope of a line passing through two points (x1, y1) and (x2, y2) is given by the formula: m = (y2 - y1) / (x2 - x1) In this case, (x1, y1) = (-3, t) and (x2, y2) = (4, 3). So, the slope of the line is: m = (3 - t) / (4 - (-3)) Show more…
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