exam Maths Puzzle Numerical Ability

ok there is this extremely hard question for our class extra credit so here it goes.....
9821734682123457(squared)+2*18927365=819723568917469567

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exam Other Question

Is the conic section a curve formed by the intersection of two cones or just one? Or does it matter? #24.)

y=2.5x I have to identify the type of function represented by each equation. Then graph the equation.

Thank you for your help :)