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Mathematics 20 Online
OpenStudy (anonymous):

Write the equation of the horizontal line passing through the point (-1, -8).

jimthompson5910 (jim_thompson5910):

plot the point (-1,-8)

jimthompson5910 (jim_thompson5910):

then draw a horizontal line through it

jimthompson5910 (jim_thompson5910):

what are some other points on this line?

OpenStudy (anonymous):

ok wait

OpenStudy (anonymous):

(-2,-8) (-3,-8) (-4, -8)

jimthompson5910 (jim_thompson5910):

what do all of those points have in common?

OpenStudy (anonymous):

The y is always -8

jimthompson5910 (jim_thompson5910):

so no matter which point you're dealing with, the y coordinate is always -8

jimthompson5910 (jim_thompson5910):

this means that y = -8 is the equation that forms the horizontal line

OpenStudy (anonymous):

equation of horizontal line passing through (-1,-8) is y=-8 or y+8=0

OpenStudy (anonymous):

ok thank you both

jimthompson5910 (jim_thompson5910):

yw

OpenStudy (anonymous):

so the verticle would be -1 right

jimthompson5910 (jim_thompson5910):

vertical line through (-1,-8) would be x = -1

OpenStudy (anonymous):

ok thank you for the help really appreciate it

jimthompson5910 (jim_thompson5910):

sure thing

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