Fit a linear function to data when a scatter plot suggests a linear association.
Write a linear model from the slope and y-intercept of a fitted line
Problem
Write the linear model with slope \(2\) and \(y\text{-}\text{intercept}\) \(5\).
Big Picture
What this problem is really about
A fitted-line equation packages two separate features: the rate of change and the value at zero. Put the slope with the input variable and the intercept as the constant, using the graph or context to preserve each sign; a quick check at zero can catch a swapped or misplaced coefficient.
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