The question is two parts
A. Find the slope of the line that passes through these two points (7,2) (9.-1)
B. Find the equation of the line that passes through those two points.
I got M= -3/2 for A
and got Y=-3/2x+17/2 for B
Thanks for the help, see my mistake now. Will post a best answer
BantuPandu
Favorite Answer
Almost
Y=-3/2x+25/2
putting 17/2 gives you a -2 not a positive
i plugged in (7,2)
Best Answer?
?
A. Use the "rise over run" method to find the slope: (y2 - y1) / (x2 - x1).
x1 = 7; y1 = 2; x2 = 9; y2 = -1, so m = (-1 - 2) / (9 - 7) = -3/2.
Your answer is indeed correct.
B. Since you computed the slope in part A, you can use the point-slope form of the equation of a line:
y - y1 = m(x - x1).
y - 2 = (-3/2)(x - 7), or
y - 2 = -(3/2)x + 21/2, or
y = -(3/2)x + 25/2.
mohanrao d
First part is right
second part - eqn of line is y = -(3/2)x + 25/2
Anonymous
A/ ok
B/ no