How do I do these math problems? (Slope)?

Question

The question is, "Find the slopes, if they exist, of the lines containing these points."

(3, -5) (1, -1)

I only need help on this one and another, because once I get this, I should be able to get the rest of them.

(5/2, 3/4) (2, 1/2)

Okay, I'm totally stuck on this one. The rest I got. Thanks.

(3/5, 1/8) (2 1/10, 5/8)

Answer 1

To find the slope, the answer will be a fraction
The top of the fraction is y1 - y2
The bottom of the fraction is x1 - x2

It doesn't a matter which point is x1 and which is x2 (and same for y's) just make sure you are consistant.


So:
y1 - y2 = -5 - -1 = -4 which means the slope is -2
x1 - x2 = 3 - 1 = 2

With fractions, it can be tough if you don't remember how to add/subtract fractions. Remember, you can always change the fractions to decimals and do them, but if you get a repeating decimal, it gets hard.

Remember you need to have common denominators to add/subract fractions. I"m assuming you know how to do this. if not, then ask about that in another question.
y1 - y2 = 3/4 - 1/2 = 3/4 - 2/4 = 1/4
x1 - x2 = 5/2 - 2 = 5/2 - 4/2 = 1/2

1/4 divided by 1/2

To divide fractions, turn the second one (1/2) upside down and multiply instead of divide

1/4 * 2/1 = 2/4 = 1/2

so 1/2 is the slope.

Hope this is correct and helpful.

Answer 2

3a6a7ca323e1d01a901cce2e3d59f55x+2y=7 2y =-3a6a7ca323e1d01a901cce2e3d59f55x+7 y=(9)/(3)-3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f5523a6a7ca323e1d01a901cce2e3d59f55 x +7 slope of the perpendicular line = 23a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55 23a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55 = 3a6a7ca323e1d01a901cce2e3d59f55y-13a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55x-23a6a7ca323e1d01a901cce2e3d59f55 because of the fact it passes by way of 3a6a7ca323e1d01a901cce2e3d59f552,13a6a7ca323e1d01a901cce2e3d59f55 23a6a7ca323e1d01a901cce2e3d59f55x-23a6a7ca323e1d01a901cce2e3d59f55=3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55y-13a6a7ca323e1d01a901cce2e3d59f55 2x-4 = 3a6a7ca323e1d01a901cce2e3d59f55y-(9)/(3) 3a6a7ca323e1d01a901cce2e3d59f55y = 2x-4+(9)/(3) 3a6a7ca323e1d01a901cce2e3d59f55y=2x-a million y=3a6a7ca323e1d01a901cce2e3d59f5523a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55x - 13a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55 is the equation you're searching for. locate the slope of the line connecting 3a6a7ca323e1d01a901cce2e3d59f554,-3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55 and 3a6a7ca323e1d01a901cce2e3d59f557,63a6a7ca323e1d01a901cce2e3d59f55. x1= 4 y1= -(9)/(3) x2= 7 y2= 6 solpe = 3a6a7ca323e1d01a901cce2e3d59f55y2-y13a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55x2-x13a6a7ca323e1d01a901cce2e3d59f55 = 3a6a7ca323e1d01a901cce2e3d59f556-(9)/(3)-3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f557-3a6a7ca323e1d01a901cce2e3d59f5543a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55 = 3a6a7ca323e1d01a901cce2e3d59f556+3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f557-43a6a7ca323e1d01a901cce2e3d59f55 slope= 3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55 =(9)/(3) b = 3a6a7ca323e1d01a901cce2e3d59f55y1-m*x13a6a7ca323e1d01a901cce2e3d59f55 b =-(9)/(3)-[3a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f553a6a7ca323e1d01a901cce2e3d59f55]3a6a7ca323e1d01a901cce2e3d59f5543a6a7ca323e1d01a901cce2e3d59f55 = -15 Equation: y= mx +b , m = slope Equation of the line is : y = 3a6a7ca323e1d01a901cce2e3d59f55x -15

Answer 3

use the slope formula..."y "with the little two minus the "y" with the little one divided by "x" with the little two minus "x" with the little one. once you have the slope use point slope formula the n you get your slope intercept form and thats your equation of the line if you have any other problem you can reach me at my email. [e-mail]

Answer 4

slope would be (1-3)/(-1+5) which is x2-x1/y2-y1 distance between and rise over run

Answer 5

if you know about x,y you should be able to answer it. x is horizontal, an y is vertical. connect the 2 lines and that is your slope.

Answer 6

m = (y2 - y1) / ( x2 - x1)
(-5 - (-1)) / ( 3 - 1)
-4 / 2
-2

Answer 7

slope is y - y / x - x. so your second y value minus your 1st y, over your second x minus your first x

Answer 8

plot them on the coordinate plane (graph them) and then find the rise and run to c wat their slopes are