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Linear Algebra 22 Online
OpenStudy (anonymous):

25y=100-50x

OpenStudy (campbell_st):

what do you need to do with this straight line..?

OpenStudy (anonymous):

use intercepts and a checkpoint to graph the equation

OpenStudy (campbell_st):

ok... if you divide every term by 25 you get y = 4 - 2x for the y intercept let x = 0..... so y = 4 - 2(0) so the y intercept is = 4 the ordered pair is (0,4) for the x intercept - let y = 0 so 0 = 4 - 2x so x = 2 the x intercept is (2, 0) so for a check point, let x = 1, substitute it to fond the value of y. when you have the 3 ordered pairs plot the points on the number plane, and the line should pass through all 3

OpenStudy (anonymous):

thanks so much

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