for y = x - 7, find y-coord. of points (-2), (7), and (2).  TOPIC_SOLVED

Simple patterns, variables, the order of operations, simplification, evaluation, linear equations and graphs, etc.

for y = x - 7, find y-coord. of points (-2), (7), and (2).

Postby hunsperger on Thu Mar 15, 2012 1:07 am

given the linear equation y = x - 7, find the y-coordinates of these points (-2),(7), and (2).
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Re: for y = x - 7, find y-coord. of points (-2), (7), and (2  TOPIC_SOLVED

Postby little_dragon on Thu Mar 15, 2012 1:57 pm

hunsperger wrote:given the linear equation y = x - 7, find the y-coordinates of these points (-2),(7), and (2).

put the x in the eqn
minus the 7
give the y
like: x=3 then y=3-7=-4
do the same thing for x=-2,x=7,x=2
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