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Mathematics 49 Online
OpenStudy (narissa):

help please

OpenStudy (narissa):

OpenStudy (hawk):

use slope point form y=mx+c

OpenStudy (jiteshmeghwal9):

Replace y by 0

OpenStudy (jiteshmeghwal9):

U will get the x intercept

OpenStudy (narissa):

multiply it by 0?

OpenStudy (narissa):

is the answer 9

OpenStudy (jiteshmeghwal9):

-6x-2y=-18 Replace y by 0 -6x-2(0)=-18 Can you find x now?

OpenStudy (narissa):

is it 1/6?

OpenStudy (dumbcow):

the line crosses x-axis when y=0, so x-intercept occurs when y=0 plug in y=0 to find x-intercept -2 * 0 = 0 right resulting in ----> -6x = -18 solve for x by dividing by -6 on both sides x = (-18)/(-6)

OpenStudy (narissa):

ok so i multiply -18 by -6

OpenStudy (dumbcow):

Always write x-intercept as a point ----> (x,0)

OpenStudy (dumbcow):

what??? "/" means divide ....i believe i wrote "divide" by -6 on both sides

OpenStudy (narissa):

ok so 3?

OpenStudy (dumbcow):

yes correct x-intercept is (3,0)

OpenStudy (dumbcow):

FYI , y-intercept is found similarly by plugging in x =0 and solving for "y"

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