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Need help with co-ordinate geometry question (C1) watch

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    I'm trying to figure out this question but don't know how to go about it:

    Line y= -2x + 6 meets the x-axis at point P. Line y= 3/2x - 4 meets the y-axis at point Q. Find the equation of the line joining the points P and Q. (Tip: first work out the gradient of the line joining points P and Q).

    Can somebody please write me some step by step instructions on how to solve this? Thanks
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    (Original post by jessyjellytot14)
    I'm trying to figure out this question but don't know how to go about it:

    Line y= -2x + 6 meets the x-axis at point P. Line y= 3/2x - 4 meets the y-axis at point Q. Find the equation of the line joining the points P and Q. (Tip: first work out the gradient of the line joining points P and Q).

    Can somebody please write me some step by step instructions on how to solve this? Thanks
    Find P and Q. Remember that when a line crosses the y-axis, x = 0, and when a line crosses the x-axis, y = 0.

    Hence find the gradient of PQ.

    Hence either use y - y1 = m(x - x1) or y = mx + c to find the equation of the line PQ.

    As always with coordinate geometry, a diagram will help.
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    Starting point -
    P = 3
    Q = -4

    Now work from this fact
 
 
 
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