exam Maths Puzzle Numerical Ability

Input/Output Table

Input: Output
-2 4
1 1
4 16

What is the funtion rule?

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exam Other Question

can you help me set up this problem and solve

the current I in electrical conductor varies inversely as the resistance R of the conductor. suppose I is 0.2 amperes when the resistance is 200ohms. find the current when the resistance is 250ohms. will you please explain to me how to do this using an equation. i am so lost.
It says, find the slope and equation of the line through the points (-2,5) and (3,-1)
If you could help me, that would be wonderful. thank you and God bless.