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

1. 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
2. (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.
3. Starting point -
P = 3
Q = -4

Now work from this fact

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