Question

If a line goes through points (-2, 9) and (0, 3), what is its slope?

Answer 1

do u know the slope formula?

Answer 2

yes

Answer 3

what is it?:)

Answer 4

m=rise/run...?

Answer 5

thats part of it...but if you have a set of points the formula for slope=m which equals
\[\frac{ Y2-Y1 }{ X2-X1 }\]

Answer 6

out of your coordinates (-2,9) and (0,3) which is Y2 and Y1?

Answer 7

i knew about that one to. I suck at algebra.

Answer 8

y2 is 3 and y1 is 9...?

Answer 9

algebra, and especially slope just takes a lot of practice. it took me a long time to finally understand slope because there are a lot of different formulas to remember!

Answer 10

perfect!!!

Answer 11

and what's X2 and X1?

Answer 12

One would think 4 yrs of high school would be enough.

Answer 13

x2 is 0 and x1 is -2

Answer 14

correct! so now just put those into the formula and subtract and you will have your slope (m) :)

Answer 15

what about simplifying?

Answer 16

well what do you end up with after you plug them in and subtract?

Answer 17

simplify...?

Answer 18

you said for Y2=3 and Y1=9 so 3-9 is?

and you said X2=0 and X1=-2 so 0-(-2) is?

Answer 19

we need to get to the fraction part of the answer before we simplify right!