Write the equation of the line that passes through the pair of points by finding the slope and $y$ -intercept.
$(0, 4)$ and $(- 1, 1)$

Answer

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Answer

3. $y = 3 x + 4$

Steps

Step 1 ：1. $m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{1 - 4}{- 1 - 0} = \frac{- 3}{- 1} = 3$

Step 2 ：2. $y = m x + b \to 4 = 3 (0) + b \to b = 4$

Step 3 ：3. $y = 3 x + 4$