Q. 55.0( 1 Vote )

# <span lang="EN-US

Given: f(x) = x2

The graph for the given function is (i) Range(f):

For finding the range of the given function, let y = f(x)

Therefore,

y = x2

x = √y

The value of y ≥ 0.

Hence, Range(f) is [0, ∞).

(ii) Let y = f(x) = Given y = 4.

Therefore, =4

x = 2 or x = -2

The set of values for which y = 4 is x = {2,-2}.

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