book Maths Puzzle Numerical Ability

A line in the Cartesian plane passes through the points (-2,4) and(2,-1). What are the rise and the run of the line?Please help me if you can, I am lost!

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book Other Question

Find the intercepts for the graph of the equation.

5x+y=5
Please help.
Subtract and write answer in simplest form.

y-2/y+3 - y/2y+6

I am getting y-4/2(y+3)

Is this right?