exam Maths Puzzle Numerical Ability

Can someone help me on this equation?


I need to complete the ordered pair so that each is a solution for the given equation:

3x + 4y = 12

pair 1 is= (,3/4)
pair 2 is= (,0)

Thanks,
Sher

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exam Other Question

Given -x^2-6x-3, is the vertex a maximum or minimum for the function? What is the value fo that maximum or minimum?

There is nothing in my book about maximums and minimums, please help!
Evaluate without a calculator
1. sec(210 degrees)

2. tan(-pi/4)