A straight line equation y=1/2x+1 the point p lies on the straight line.p has a y-coordinate of 5. Find the x-coordinate of p

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12-03-2018
Mathematics

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A straight line equation y=1/2x+1 the point p lies on the straight line.p has a y-coordinate of 5. Find the x-coordinate of p

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calculista calculista · Answer 1 · 2018-03-21T19:48:32+01:00

calculista calculista

21-03-2018

we have that
y=(1/2)x+1

we know that
the point p has a y-coordinate of 5

therefore
I substitute the value of y = 5 in the equation of the line
5=(1/2)x+1--------> 5-1=(1/2)x------> 4=(1/2)x-----> 8=x
x=8

the answer is
the x coordinate of p is x=8

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