James takes two data points from the weight and feed cost data set to calculate a slope, or average rate of change. A hamster weighs 3 pounds and costs $3.50 per week to feed, while a Chihuahua weighs 4.8 pounds and costs $6.20 per week to feed. Using weight as the explanatory variable, what is the slope of the line between these two points? Answer choices are rounded to the nearest hundredth.

The slope of the line between these two points is 1.50.

Step-by-step explanation:

The general form of the regression line is:

Here,

y = dependent variable

x = independent variable

m = slope

c = intercept.

The formula to compute slope using two-point method is:

In this case the dependent variable is the cost per week to feed and independent variable is the weight of the hamster.

The two points are:

(x₁, y₁) = (3, 3.50)

(x₂, y₂) = (4.8, 6.20)

Compute the slope as follows:

Thus, the slope of the line between these two points is 1.50.

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step-by-step explanation: