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nasty-shy [4]
3 years ago
6

Which is not an equation of the line that passes through the points (1, 1) and (5, 5)? y - x = 0 x - y = 0 -x - y = 0

Mathematics
2 answers:
slamgirl [31]3 years ago
4 0

Answer:

-x-y=0 is not the equation of the line

Step-by-step explanation:

Lets find equation of a line that passes through points (1, 1) and (5, 5)

Slope = \frac{y2-y1}{x2-x1} =\frac{5-1}{5-1} =1

Slope = 1  and use point (1,1)

y-y1= m(x-x1)

y-1= 1(x-1)

y-1 = x-1

add 1 on both sides

y=x

when we subtract x  on both sides then equation becomes y-x=0

when we subtract y on both sides then equation becomes x-y=0

so -x-y=0 is not the equation of the line

dimulka [17.4K]3 years ago
3 0
The third option.  you can always substitute the points into your equation to see if the equation is true or not.
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