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21BrandyMae
First you need to get the equation into y - intercept form in order to graph it. The equation needs to be in the form y=mx+b. do you know how to convert that equation to y=mx+b?
christinann062
ok so you need to find the x and y- intercepts. to do this you simply plug 0 in for x and then for y, giving you the value of each variable.

15x + 20y = 1,800

15x + 20(0) = 1,800
15x = 1,800
x = 120

15(0) + 20y = 1,800 
20y = 1,800
y = 90

your x-intercept is (120,0)
your y-intercept is (0,90)