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Mathematics 23 Online
OpenStudy (anonymous):

@kirbykirby

OpenStudy (anonymous):

OpenStudy (anonymous):

OpenStudy (kirbykirby):

Observe that the equation of the line, in general, is y = mx+b and m is the slope, and b is the y-intercept (The point on the graph where the line crosses the y-axis). If the slope is negative, the line will look like this: \ If the slope if positive, the line will look like this: / Also, to determine how the graph shifts up and down... look at the y-intercept of the graph of both lines and see how many units they changed.

OpenStudy (kirbykirby):

So you have a function y = -3x - 5 The " -5 " is the y intercept, but it also represents the shift of the parent function y = -3x

OpenStudy (anonymous):

Are we looking for the graph of y= -3x-5 ?

OpenStudy (kirbykirby):

yes.

OpenStudy (anonymous):

That graph looks like this \ , therefore options "C" and "D" are Eliminated , since they're like / ! Options "A" and "B" remain since they look like this : \

OpenStudy (kirbykirby):

yes

OpenStudy (anonymous):

it's B!

OpenStudy (kirbykirby):

bingo :)

OpenStudy (anonymous):

yay! Do you mind checking some problems for me?

OpenStudy (kirbykirby):

oh dear I wish I could, but I actually have to leave my house in a few mins, sorry :(

OpenStudy (kirbykirby):

I'm sure other people here will help :)

OpenStudy (anonymous):

:( are you able to check 1 at least?

OpenStudy (kirbykirby):

um ok just 1

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