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Mathematics 23 Online
OpenStudy (anonymous):

I need help with slopes! will give MEDAL and FAN

OpenStudy (anonymous):

@Compassionate @SithsAndGiggles @radar @Loser66 @Kainui

OpenStudy (anonymous):

@DanJS

OpenStudy (danjs):

ok hello

OpenStudy (anonymous):

Hi

OpenStudy (anonymous):

What is the slope of a line parallel to the line with equation 2x - 5y = 9?

OpenStudy (danjs):

well parallel means that it will have the same slope

OpenStudy (anonymous):

A. 2/5 B. -2/5 C. -5/2 D. -9/5

OpenStudy (danjs):

change that given equation into ,, y = mx + b form first

OpenStudy (anonymous):

m is the slope right?

OpenStudy (danjs):

2x = 5y + 9 5y = 2x - 9 y = (2/5)x - (9/5)

OpenStudy (danjs):

yeah m is the slope

OpenStudy (anonymous):

ok then what do i do?

OpenStudy (danjs):

any line parallel to that given one , will have the same slope

OpenStudy (anonymous):

so i graph it then?

OpenStudy (danjs):

so you have y = mx + b y = (2/5)x + (9/5)

OpenStudy (danjs):

any parallel line to that one will have a slope of 2/5

OpenStudy (anonymous):

oh, so thats the answer?

OpenStudy (danjs):

yea

OpenStudy (anonymous):

k, can you help me with 1 more?

OpenStudy (danjs):

sure

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Which of the following has a slope of 2 and a y-intercept of –4? (Points : 4) y = -2x + 4 y = 2x + 4 y = 2x - 4 y = -2x - 4

OpenStudy (anonymous):

oops

OpenStudy (anonymous):

Which of the following has a slope of 2 and a y-intercept of -4?

OpenStudy (danjs):

recall: the form y = mx + b m = slope b = y-intercept

OpenStudy (anonymous):

oh ok so it is C.

OpenStudy (danjs):

yep

OpenStudy (anonymous):

Awesome thank you

OpenStudy (danjs):

no problem

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