exam Maths Puzzle Numerical Ability

for each pair of equations, determine if the lines are parallel, perpendicular, or neither.

y-3x=10 and 3y+x = -5

I have no idea how to start. Thank you.

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exam Other Question

Anybody know how to solve this one

Given f(x)=-5x^4+x^3+2x^2+3x+1, and k=1, express f(x) in the form f(x)=(x-k)q(x)+r

thank you very much for your time 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!