Answer :
You plug 0 in for 1 of the variables and solve for the other vice versa
The x and y-intercept of the expression are (c/a, 0) and (0, c/b)
Given the expression ax + by = c
The y-intercept is the point where x = 0
Substitute x = 0 into the expression:
a(0) + by = c
0 + by = c
by = c
y = c/b
Hence the y-intercept is (0, c/b)
Similarly;
The x-intercept is the point where y = 0
Substitute y = 0 into the expression:
ax + b(0) = c
ax + 0 = c
ax = c
x = c/a
Hence the x-intercept is (c/a, 0)
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