exam Maths Puzzle Numerical Ability

a homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. the insulation comes in 40 cm wide rolls that are cut to fit between rafters in the attic.

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find the distance between each of the pairs of points. 1.(6,-4),(9,-7) 2.(-2,3),(-2,-7) graph the line and determine the two points and find the slope of the line 1.(1,2),(4,6) 2.( Evaluate the functions for the values of x given as 1, 2, 4, 8, and 16. Describe the differences in the rate at which each function changes with increasing values of x.

2. f(x) = x2 - 3x + 2