Question 1090905
1) The line,L1 passes through point B(4,3) and point A(4,-3).Find (i)the gradient of L1,(ii)the equation of L1 (iii)sketch the graph of L1..
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The gradient, or slope, is the change in y/(change in x)
Usually called m.
m = (-3-3)/(4-4) = -6/0
That's undefined.
The slope is infinite.
It's a "vertical line" parallel to the y-axis.
The equation is x = 4
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To graph it, dl
www.padowan.dk
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It's free.  It will help you.  DL it.
(PS  I get 10% for each DL)
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Some tutors tend to answer some types of problems, and not others.
Posting 5 different problems reduces the chances of getting a response.  Post them separately.
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Logging onto the site shows the last 50 problems posted.  Other problems scroll off, and a tutor seldom goes thru the steps to see them.
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