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Question

The graph of the equation y=mx+c passes through the points (1,4) and (−2,−5). Determine the respective values of m and c.

A
m=3,c=3
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B
m=3,c=1
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C
m=1,c=1
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D
m=1,c=3
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Solution

The correct option is B m=3,c=1
The following are some forms of equation of straight line.
(i) Gradient form :
(ii) Point slope form : yy1=m(xx1)
(iii) Two points form : yy1=(y2y1x2x1)(xx1)
(iv) Slope-intercept form : y=mx+x
(v) Two intercept form : xa+yb=1
1115367_529622_ans_ff656252457542888ba086a8ee48c3ad.jpg

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