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Mathematics 15 Online
OpenStudy (gokuporter):

http://prntscr.com/di9xbr Is this correct?

OpenStudy (skullpatrol):

The fastest way, I think, is to draw the equation.

OpenStudy (skullpatrol):

$$y+6.75 = 0.25(x-1)$$ $$y= 0.25x-7$$

OpenStudy (skullpatrol):

Now draw the line with slope 1/4 and y-intercept -7 and plot the given points Be sure to check the points that look like they are on the line in the equation.

OpenStudy (gokuporter):

What next?

OpenStudy (skullpatrol):

Give your answer :-)

OpenStudy (gokuporter):

(0,-7)?

OpenStudy (skullpatrol):

Yup, that one satisfies the equation

OpenStudy (gokuporter):

D?

OpenStudy (skullpatrol):

Yes.

OpenStudy (skullpatrol):

Any more?

OpenStudy (skullpatrol):

Check: (4,-6) please.

OpenStudy (skullpatrol):

Remember there are infinitely many pionts that satisfy equations ;-)

OpenStudy (skullpatrol):

That^ is why I said it is faster to draw the equation and then plot the answer choices.

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