Question

One part of Claire’s job at an environmental awareness organization is to answer the pho to collect donations. T he scatter plot shows the number of hours she worked each week x and the amount of donations in dollars y that the organization collected each week for 10 weeks. The data is the scatter plot suggests a linear association. A lone to model the data is given by y=12x+41

Answer 1

The variables have a linear correlation.

We know this from the model: y = 12x +41

The straight-line equation has the general form: y = mx + c

where:

m = gradient

c = intercept on y axis

Given y = 12x + 41, we can tell that:

m = 12

c = 41

Also, given the positive gradient, we can easily see that they increase or decrease together.