Graph the following line: 3x + 5y = 300

rpdrake

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May 22, 2007
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Graph the following line:

3x + 5y = 300

having trouble with this plus I don't know how to graph on the computer
thanks
 
Divide both sides by 300 and see if something magical jumps out at you.

Hint: What if x = 0 or y = 0?
 
rpdrake said:
Graph the following line: 3x + 5y = 300
You could try using the usual process:

. . . . .a) Draw the xy-plane.
. . . . .b) Pick an x-value.
. . . . .c) Plug it into the formula.
. . . . .d) Solve for the corresponding y-value.
. . . . .e) Draw the (x, y) dot.
. . . . .f) Repeat (b) through (e) until you are comfortable
. . . . . . .with your line.

rpdrake said:
I don't know how to graph on the computer
If you are supposed to be doing your drawing within some software package, you would need to consult with the owners manual, the manufacturer, or your instructor for help with that. I'm afraid we wouldn't be of much use on this count. Sorry! :oops:

Eliz.
 
rpdrake said:
Graph the following line:

3x + 5y = 300

having trouble with this plus I don't know how to graph on the computer
thanks

Put your equation in slope-intercept form: y = mx+b

3x + 5y = 300

5y = -3x + 300

now divide both sides by 5 to get y by itself... and then graph manualy or plug the y=mx+b equation into your graphing utility.

Cheers,
John
 
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