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Question

Equation of a line is 3x4y+10=0. Find its
(i) slope,
(ii)x and y- intercepts.

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Solution

given equation of line is
3x4y+10=0
rewriting in general form
4y=3x+10
or
y=34x+104 (1)
and we know that general form a straight line is
y=mx+c (2)
where m is slope of the line and c is the y-intercept of the line
hence, by comparing eq(1) and eq(2) we get
slope of line m=34 (slope of line)
and y-intercept is defined as value of y at x=0
hence, from equation (1)
y=34×0+104
or y=104 (y-intercept)
and x-intercept is defined as value of x at y=0
hence, from equation (1) we get
0=34x+104
3x=10
or x=103 (x-intercept)

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