exam Maths Puzzle Numerical Ability

Hi. Can I have some help with this problem?

Indicate which points are on the graph of the equation. (Select all that apply.)
y = -2x + 3

(0, 3)
(-1/2, 4)
(-1/2, -2)
(

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exam Other Question

Please help.

Find values for m and b in the following system so that the solution to the system is (-3, 4).

5x = 7y =b

mx + y = 22

Thanks
JMS
4ax+ by=11ab 8ax-5by= ab x=? y=?