Question

Find the value of k so that the line containing (4, -3k) and (2k, 5) has a slope of m=5/2.

Answer 1

\[\frac{ y_2 - y_1 }{ x_2 - x_1 }\]

Answer 2

Wouldn't the y's be 5 and -3k?, not five and four

Answer 3

oh, oops, i mixed those up

Answer 4

5 + 3k / 2k - 4 = 5/2

Answer 5

5 + 3k = 5/2 (2k-4)
5 + 3k = 5(k-2)
5 + 3k = 5k -10
15 = 2k
15/2 = k