How do you graph #y=-x+6# by plotting points?

1 Answer
Alan P. · MathFact-orials.blogspot.com
Jun 9, 2017

Pick a few values for #x# (I would suggest ones that make #y=-x+6# easy to evaluate).
Plot the resulting #(x,y)# value pairs on the Cartesian plane.
Draw line through the points.

Explanation:

For example, choosing #x in {-1,0,+1}#
gives
#color(white)("XXX"){: (ul(x),color(white)("XX"),ul(y=-x+6)), (-1,,7),(0,,6),(+1,,5) :}#
results in the pairs:
#color(white)("XXX")(-1,7), (0,6), (1,5)#

Plotting these and drawing a line through these points should look like:
enter image source here

Related questions
See all questions in Graphs of Linear Equations
Impact of this question
1948 views around the world
You can reuse this answer
Creative Commons License