Alison is at a baseball game with herbrother, John. She has $18 to spend on hamburgers and pop. Hamburgers cost $3 each and pop cost $2 each. The equation 2x + 3y=18 can be used to model this problem. A) what does the x in the equation represent? b) what does the y in the equation represent? C) graph the equation.
The real question is.... Was Alison ever at the baseball game? Or was it her twin sister! Ha!
X represents the pops and y represents the hamburgers. To graph the equation, put it in slope-intercept form: 2x + 3y=18 3y = -2x + 18 y = -2/3x + 6
Loooool
You gotta think outside the box sometimes..
@a1234 how do i do that?
Do what, the graphing?
yes
No, investigate weather or not she was at the game. You never know
Start by locating the point (0,6), the y-intercept. Then go down two and right three. Continue to move along the graph like this. When you have enough points, draw a line through them.
okay
wait ..so, id do 1,6
2,6
and so on?
so all the points would be 3,4 ...4,4....and 5,4?
Your first point is (0,6), okay?
ok
Then go down 2 points, you will come to (0,4). But wait, DON'T plot yet! Go 3 points right from (0,4) to come to (3,4). Plot (3,4). Continue this process.
okay i get that
Glad you get that :).
where do i draw the line
Through those points.
like connecting the dots with an arrow
Yeah, kind of.
but the arrow heading towards the bottom right corner right? since its decreasing
Keep your line in first quadrant, as the numbers can only be positive. So I think you shouldn't really draw an arrow, but something like this:|dw:1392873885380:dw|
alright thanks for the help
You're welcome.
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