The equation of the line m is 8x - 14y + 3 = 0
a) For what value of k is the graph of kx - 7y + 10 = 0 parallel to line m?
My work:
. . .slope:
. . . . .-A/B = -8/-12 = 8/12 = 4/7
. . . . .-A/B = -?/-7
. . . . .k = 4
b) What is k if the graphs of m and kx - 7y + 10 = 0 are perpendicular?
I don't know how to do this part.
The answer to part b is -49/4, but I have no idea how to get the answer. I thought all you had to do was find the opposite reciprocal but it turns out to be -7/4 NOT -49/4
Please help! Thank you!
a) For what value of k is the graph of kx - 7y + 10 = 0 parallel to line m?
My work:
. . .slope:
. . . . .-A/B = -8/-12 = 8/12 = 4/7
. . . . .-A/B = -?/-7
. . . . .k = 4
b) What is k if the graphs of m and kx - 7y + 10 = 0 are perpendicular?
I don't know how to do this part.
The answer to part b is -49/4, but I have no idea how to get the answer. I thought all you had to do was find the opposite reciprocal but it turns out to be -7/4 NOT -49/4
Please help! Thank you!