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saw5 [17]
3 years ago
10

Javier's grandmother lives 120 miles away. It takes 1 hour to travel 40 miles by train. If Javier leaves a7 7 A.M., is it reason

able to say he will arrive in his grandmother's city by 9 A.M. ?
Mathematics
1 answer:
konstantin123 [22]3 years ago
3 0
No it isn't. If it takes 1 hour to travel 40 miles and she lives 129 miles away, it would take 3 hours. So they would reach their grandmother's house by 10:00 am.
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You are asked to do this problem by graphing, which would be hard to do over the Internet unless you can do your drawing on paper and share the resulting image by uploading it to Brainly.

If this were homework or a test, you'd get full credit only if you follow the directions given.

If <span>The points(0,2) and (4,-10) lie on the same line, their slope is m = (2+10)/(-4), or   m =-3.  Thus, the equation of this line is y-2 = -3x, or y = -3x + 2.

If </span><span>points (-5,-3) and (2,11) lie on another line, the slope of this line is:

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Doing this problem by graphing, on a calculator, produces a different result:  (-1,5), which matches D.

I'd suggest you find and graph both lines yourself to verify this.  If you want, see whether you can find the mistake in my calculations.

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