## How do you find the line of best fit on a TI 84 Plus?

Scatter Plots & Line of Best Fit on the TI-84 –

## How do you find the line of best fit on a calculator?

- Step 1: Enter the data in your calculator. Press …, then press 1: Edit …
- Step 2: Find the Linear Regression Equation. Press …, then ~, in order to highlight CALC , then select 4: LinReg(ax+b). You should see this screen.
- Step 3: Graphing your data AND the line of best fit. First, graph the data. Press y o (STAT PLOT).

## How do you find the line of best fit on a Casio calculator?

Line of best fit with your calculator – CASIO –

## How do you find the scatter plot on a TI 84?

**TI-84: Setting Up a Scatter Plot**

- Go to [2nd] “STAT PLOT”. Make sure that only Plot1 is ON.
- Go to Y1 and [Clear] any functions.
- Go to [STAT] [EDIT]. Enter your data in L1 and L2.
- Then go to [ZOOM] “9: ZoomStat” to see the scatter plot in a “friendly window”.
- Press [TRACE] and the arrow keys to view each data point.

## What is the line of best fit?

Line of Best Fit. A line of best fit (or “trend” line) is a straight line that best represents the data on a scatter plot. This line may pass through some of the points, none of the points, or all of the points. You can examine lines of best fit with: 1.

## How do you find the Y intercept?

To find the y intercept using the equation of the line, plug in 0 for the x variable and solve for y. If the equation is written in the slope-intercept form, plug in the slope and the x and y coordinates for a point on the line to solve for y.