18x + 12y = 72
to get x-int. put y=0
18x + (12)(0) = 72
18x = 72
x = 4
your x-intercept is 4. this is the place where the line goes through the x-axis.
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18x +12y = 0
y=-18x+17. Since this is already in Slope-Intercept form, we can determine that the slope is negative 18.
The discriminant is 0.
(2x4) + (8x3) + 18x 8 + 24 + 18x 32 + 18x
to get slope equation needs to be in standard form y = mx + b where m = slope and b = y intercept (value at x = 0) 18 x + 3y = 30 3y = -18x +30 y = -6x +10 m = slope = -6