Mia's work to find the slope of a trend line through the points (3, 10) and (35, 91) is shown below. Mia's Work Step 1 StartFrac
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Answer:
Step-by-step explanation:
There are a couple of ways to solve this, depending on what you already know.
Point-Slope Form
where <em>m</em> is the slope and
is a point on the line.
First, calculate the slope using the two given points .
.
Fill in the point-slope pattern
There's the equation in slope-intercept form ().
Slope-Intercept Form
Use directly.
Find the slope just like the above, so .
Now, plug one of the points (either one!) together with <em>m</em> into
Now you know the value of <em>b</em>, so the equation for the line is