A line passes through the points (-8, 7) and (x2, y2), and has a slope of -1/10. If point (x2, y2) is located in quadrant I, find x2.

Question

anonymous · Answer

ok, so we know a couple of things, we know the slope, we know that the point lies in QI, so we should have all we need to answer the question.

anonymous · Answer

ok

anonymous · Answer

is what i have told you made sense so far?

anonymous · Answer

yes

anonymous · Answer

Our slope formula is $$m=\frac{ y _{2}-y _{1} }{x _{2}-x _{1}  }$$

anonymous · Answer

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anonymous · Answer

OOPs, didn't mean to bust into your explanation @Hope_nicole

anonymous · Answer

its okay

anonymous · Answer

you can help if you want to

anonymous · Answer

Let's substitute the values we know into the slope formula....

anonymous · Answer

We know m, we know x_1 and y_1

anonymous · Answer

i already did @Hope_nicole  help me do that already we got y=-1/10+6.2

anonymous · Answer

well, I was thinking more like this:

$$y _{2}-7=-1$$ and $$ x _{2}-8=10$$

anonymous · Answer

Now just solve for each of those separately and you have your answer.

anonymous · Answer

6 and 18

anonymous · Answer

There you go, so your x value is what you were looking for.

anonymous · Answer

so the x is 18

anonymous · Answer

Most importantly, the values fit the description that the point is in Q1 because (18,6) lies in Q1.

anonymous · Answer

thanks

anonymous · Answer

YW!

anonymous · Answer

did he help you? sorry my dogs decided to run throw a mud puddle!

anonymous · Answer

is he right