Express y in terms of x. Variables x and y are related so that, when y ^(2) is plotted on the vertical axis and 2 ^(x) is plotted on the horizontal axis, a straight-line graph w…

Question

Express y in terms of x.

Variables x and y are related so that, when

`y ^(2)`
is plotted on the vertical axis
and

`2 ^(x)`
is plotted on the horizontal axis, a straight-line graph which passes
through the point (8, 49) with gradient 3 is obtained.
a Express ya in terms of

`{2}^(x)`
.
b Find the value of x when y = 11.​

Answer 1

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Explanation: