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Mathematics 15 Online
OpenStudy (nuccioreggie):

help

OpenStudy (nuccioreggie):

What is the slope of the line shown in the graph? A coordinate plane is shown. Points are graphed at −3 comma 2 and −1 comma −1. The points are connected by a line. −3 over 2 −1 over 2 3 over 2 Undefined

OpenStudy (nuccioreggie):

OpenStudy (nuccioreggie):

@zpupster

OpenStudy (zpupster):

these are (x,y) points m=slope \[m=\frac{ (y_2-y_1) }{ (x_2-x_1) }\] plug in your points m=2-(-1)/-3-(-1) do the math that is your sliope

OpenStudy (nuccioreggie):

@zpupster i got 1.3 though

OpenStudy (phi):

you could do this by counting. put your finger on the point (-3,2) now count how many boxes straight down until you are even with point (-1,-1) how many do you count ?

OpenStudy (nuccioreggie):

ok

OpenStudy (phi):

how many do you count ?

OpenStudy (nuccioreggie):

3

OpenStudy (phi):

yes. that is the change in y. (y is up/down) because we went down, it is -3 now count to the right until you are at point (-1,-1) how many steps over ?

OpenStudy (nuccioreggie):

2

OpenStudy (phi):

yes. 2 is the change in x. It is +2 because we are going to the right. (if we had to go left, it would be minus) finally, slope is change in y divided by change in x so slope is -3/2

OpenStudy (nuccioreggie):

ok preciat for helping me like that can you help me with 4 more?

OpenStudy (phi):

if you make a new post.

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