The scatter plot shows different students’ grade point averages (GPA) and scores on a test.

What is the equation of the graphed linear model?

y =___x +___
http://static.k12.com/calms_media/media/1549000_1549500/1549112/4/7390c9fb9a63b8e12222a8022220158e8dc6e5ae/MS_IMC-141014-181216.jpg

Question

The scatter plot shows different students’ grade point averages (GPA) and scores on a test.
 
What is the equation of the graphed linear model?
 
y =___x +___
http://static.k12.com/calms_media/media/1549000_1549500/1549112/4/7390c9fb9a63b8e12222a8022220158e8dc6e5ae/MS_IMC-141014-181216.jpg

anonymous · Answer

y= mx +b
m = slope
b = y intercept

anonymous · Answer

1.5x+30

anonymous · Answer

wrong

anonymous · Answer

how

astrophysics · Answer

b is the y - intercept (where the line crosses the y - axis)

anonymous · Answer

I'm a little confused I was never good in graphs. graphs was always my fail point :/

astrophysics · Answer

y=mx+b is all you need, m is the slope, to find that you can use the following formula $$ m = \frac{ y_{2}-y _{1} }{ x _{2}-x _{1} }$$

astrophysics · Answer

You can use any two points for it, and look b is the y - intercept as I said earlier, where the line crosses the y-axis, so in this case it's 40.

anonymous · Answer

I'm still confused I did all the equation stuff and I still don't understand

astrophysics · Answer

Where are you confused?

astrophysics · Answer

Please be more specific, that way I can help you better

astrophysics · Answer

I think you may need to read this: http://www.mathsisfun.com/equation_of_line.html you will understand then

anonymous · Answer

Well thanks anyway I guess..

astrophysics · Answer

You never said where you were confused, I gave you all the info.

astrophysics · Answer

You can either read the link I sent you/ tell me where your problem is/ stay confused.