exam Maths Puzzle Numerical Ability

ISBN 1 902 214 13X - Essential Mathematics Book 8 - David Rayner

The height of a balloon increases at a steady rate of x metres in t hours. How far will the balloon rise in one hour? How far will the balloon rise in 4 hours?

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exam Other Question
Consider f(x)=x^2; s(x) is f(x) shifted which way and how far, if
s(x) = (x+2)^2 -3?

a. To the left 4 units
b. to the right 2 units
c. to the left 2 units can you please help me solve this:Ax+By=-28 contains the points (-8,4)(-11,9)