The entrance fee to the national park is $15. A campsite fee is $15 per night. The total cost y for a camping trip for x nights can be represented by the equation #y=15x+15#. How do you graph the equation?

1 Answer
Gió
Jan 19, 2017

Have a look:

Explanation:

Your equation represents a straight line passing through #y=15# and with slope #15# (the coefficicient of #x#). The slope tells you that for each increment of #1# in #x# then #y# increases of #15#.

To graph it you can set:

#x=0# giving the intercept #y=15#
and, say...
#x=1# giving #y=15+15=30#
whith these two points you have enough informations to plot your line:
enter image source here

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