Question # 01: Four option are given against each statement. Encircle the correct option.
\((ix)\)\(\quad\)Given that \(f(x)=3x+1\), if \(f(x)=28\), the the value of \(x\) is:
\( a) \quad \) \(9\)
\( b) \quad \) \(27\)
\(c) \quad \) \(3\)
\( d) \quad \) \(18\)
Answer: \( a) \; \) \( 9\)
Explanation:
\(f(x)=3x+1\)
\(28=3x+1\)\(\quad\)\(\because f(x)=28\)
\(28-1=3x\)
\(27=3x\)
\(\large{\frac{27}{3}}=x\)
\(9=x\)