exam Maths Puzzle Numerical Ability

Change the polar coordinates (4Sqrt2, 3pi/4), to rectangular coordinates.

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exam Other Question

If f(x) = 2x^2 + 6x - 5, then
[f(x + h) - f(x)]/h =

a. 6x + 3h - 4
b. 4x + 2h - 3
c. 10x + 5h + 2
d. 10x + 5h - 3
e. 8x + 4h + 5
f. 4x + 2h + 6
g. none of these find the range of each relation for the given domain:
relation domain
y=/x/ {-3, -2, -1, 0, 1}