Question

A construction manager is monitoring the progress of the build ot a new house. The scatterplot and table show the number ot months since the start of the build and the percentage of the house still left to build. A linear tunction

can be used to model this relationship.

Answer 1

A linear function can be used to model this relationship is: Option A:

y = -13.5x + 97.8

How to find the equation of line of best fit?

From the given data and graph, we see that:

When x = 0, y = 100

When x = 1, y = 86

When x = 2, y = 65

When x = 3, y = 59

When x = 4, y = 41

When x = 5, y = 34

The general form of the equation of a line in slope intercept form is:

y = mx + c

where:

m is slope

c is y-intercept

Looking at the given options, the closest y-intercept to 100 is 97.8 given by option A and as such it is the best estimate of the line of best fit.

Hope dis helps

Explanation: