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15-10-2016
Mathematics

contestada

What is your x– intercept when m = 2 and b = 4 ??

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Philbert Philbert

15-10-2016

y=mx+b
y=2x+4
at x-intercept, y=0.
sub y=0 into y=2x+4
2x+4=0
2x=-4
x=-4÷2
x=-2
x-intercept: (-2,0)

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