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Mathematics 15 Online
OpenStudy (anonymous):

Determine the equation of the line, in slope-intercept form, that will get your spacecraft from Point B to Point C. Slope=1 Point: (-5,-4) Convert the equations you arrived at in question 2 and question 4 into slope-intercept form. y+2=1(x+3)- #2 answer y-0=1(x+1)- #4 answer Heeeeelp! Fan & medal for answer. :)

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (anonymous):

Well, when I did the first one, I got y=1x-4. But, when I did the second one and converted them into slope intercept form, I got y=1x+1for both equations. What I don't get is if they're on the same line, how are the slopes different?

OpenStudy (skullpatrol):

What is point B and point C?

OpenStudy (anonymous):

(-3,-2),(-5,-4)

OpenStudy (skullpatrol):

So let's start with a sketch, ok?

OpenStudy (anonymous):

Here's the graph.

OpenStudy (skullpatrol):

Can you see that the y-intercept is (0, 1) and the slope m=1?

OpenStudy (anonymous):

I can see the slope but not the y intercept. I thought the slope intercept was -4 because you picked one point and put the values in the slope-intercept formula.

OpenStudy (anonymous):

y-intercept*

OpenStudy (skullpatrol):

The y-intercept is the point where the line intercepts the y-axis.

OpenStudy (anonymous):

Okay. So, my slope for the first one should match the two I got for the second problem?

OpenStudy (skullpatrol):

$$ y=1x+1$$ This is the equation

OpenStudy (skullpatrol):

What else does the question ask for?

OpenStudy (anonymous):

That's all it asks for. How did you get that?

OpenStudy (skullpatrol):

I read it off the graph you gave

OpenStudy (skullpatrol):

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