Question

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Answer 1

The general equation of a straight line is \(y=mx+c\) where m is the gradient and c is the y-intercept. The line you have is \(y=-4x\), so m=-4 and c=0. Can you continue from here?

Answer 2

so is it a?

Answer 3

Almost, notice the minus sign in the gradient. So the slope is negative (as x increases, y decreases).

Answer 4

Can you have another go using that information?

Answer 5

Yes, the last one :) Do you understand?

Answer 6

Well done :) no problem.