Algebra I.2.D.14 -Modeling Relationships with a Line - Exit Ticket

Last updated about 4 years ago

4 questions

The scatter plot above displays the elevation and mean number of clear days per year of 14 U.S. cities. Two lines are shown on the scatter plot. Which represents the least squares line? Explain your choice.

The equation of the least squares line for the data is y = -19.6 + 0.248x, where x = mare's weight (in kg) and y = foal's birth weight (in kg). What foal birth weight would you predict for a mare that weights 520 kg?

How would you interpret the value of the slope in the least squares line?

Does it make sense to interpret the value of the y - intercept in this context? Explain why or why not.

From EngageNY.org of the New York State Education Department. Grade Algebra i Mathematics Module 2, Topic D, Lesson 14. Internet. Available from https://www.engageny.org/resource/algebra-i-module-2...; accessed 17/Oct/2015.