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Sets — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSSets1 Mark
MCQ
The range of the function f(x) = 3x - 2‚ is.
  • A
    $(-\infty,\infty)$
  • B
    $\text{R}-(3)$
  • C
    $(-\infty,0)$
  • D
    $(0,- \infty)$
✓

Answer

  1. $(-\infty,\infty)$

Solution:

Let the given function is

y = 3x - 2

⇒ y + 2 = 3x

$\Rightarrow \text{x} =\frac{(\text{y}+2)}{3}$

Now x is satisfied by all values.

So, Range {f(x)} = R $=(-\infty,\infty)$

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