2) Angel is using his calculator to find the equation of a line of best fit. This is what he got:

a = 5.43333 b = 6.15777

He’s supposed to round all numbers to the nearest tenth. What is the equation for the line of best fit?

3) The table below shows the number of grams of carbohydrates, x,
and the number of calories, y, of six different foods. State the
linear regression (line of best fit) equation that best models this
data. Round all numbers to the nearest tenth.

4) The table below shows the height in feet, h(t), of a hot-air balloon and the number of minutes, t, the
balloon is in the air.

a) Use your calculator to determine the equation for the line of best fit that models this data.
Round all numbers to the nearest tenth.

b) Explain the meaning of the slope and y-intercept in the context of this problem.

Slope:

Y-intercept: