Question

What is the slope of a line that crosess through the points (-4,-5) and (6,8)?

Answer 1

Do you know the two point formula?

Answer 2

yes but i got it wrong somehow???

Slope = rise/run = y2-y1/x2-x1

Answer 3

Okay, that is correct. Just substitute the points in the formula and thats your answer.
Slope =y2−y1/x2−x1
=8−(−5)/(6)−(−4)=8+5/6+4=13/10

Answer 4

thats alot of numbers.....

Answer 5

Oh not at all, just give me a second

Answer 6

thank you srry i get confused very easy :(

Answer 7

First see what are the two points given to you.
In this case \[\left( -4,-5 \right)\] and \[\left( 6,8 \right)\]
Now remember for this case like in alphabets after x comes y, so in an ordered pair,
\[\left( x_{1},y_{1} \right)\] and \[\left( x_{2},y_{2} \right)\]

Now just identify \[x1,y1,x2,y2 \] by directly comparing the two.
In this case
\[x_{1}=-4, y_{1}=-5, x_{2}=6, y_{2}=8\]

Answer 8

okay thank you....could u give me the answer so i can make sure i got it right

Answer 9

Now use your formula, i.e, \[m=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]

\[m=\frac{ 8-(-5) }{ 6-(-4) }= \frac{ 8+5 }{ 6+4 }=\frac{ 13 }{ 10 }\]

Answer 10

yay i did get it right!!!\

Answer 11

You understood right?

Answer 12

yes thyank you

Answer 13

-.-