If f(x)=\begin{cases}ax-1 & \text{if } x\ge1\\ 2x+1 & \text{... — Mathematics 2025

Question 69 Mathematics 2025 Medium MCQ +5.00 marks · -1.00 negative

If \(f(x)=\begin{cases}ax-1 & \text{if } x\ge1\\ 2x+1 & \text{if } x<1\end{cases}\) is continuous at \(x=1\), then \(a\) equals

A. 0 B. 3 C. 4 D. 2

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