exam Maths Puzzle Numerical Ability

Find the equation of the line that passes thru the points (2, 3) and (3, 2).

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exam Other Question

a rectangle is placed under the parabolic arch given by f(x) = 27 - 3x2 by using a point (x,y) on the parabola. Write a formula for the function A(x) that gives the area of the rec x*+ax+b is a factor of the polynomial x^+qx*+rx+s.
Prove that r-b=a(q-a) and s=b(q-a).