Question

Choose correct alternative for the following question.
To draw graph of 4x + 5y = 19, Find y when x = 1.

Options

• 4

• 3

• 2

• -3

Answer 1

3

Explanation:

4x + 5y = 19

When x = 1, then y will be 

\[4\left( 1 \right) + 5y = 19\]

\[ \Rightarrow 4 + 5y = 19\]

\[ \Rightarrow 5y = 19 - 4 = 15\]

\[ \Rightarrow 5y = 15\]

\[ \Rightarrow y = \frac{15}{5} = 3\]

Hence, the correct answer is 3.