Scelta multipla
When graphing the demand curve for a normal good, which direction should the arrow point to indicate an increase in demand?
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1. Introduction to Microeconomics
Graphing Review
Scelta multipla
Find the slope of the line containing the points and .
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Identify the coordinates of the two points given: Point 1 is \(\left(-1, 1\right)\) and Point 2 is \(\left(4, 3\right)\).
Recall the formula for the slope \(m\) of a line passing through two points \(\left(x_1, y_1\right)\) and \(\left(x_2, y_2\right)\):
\(m = \frac{y_2 - y_1}{x_2 - x_1}\)
Substitute the coordinates into the slope formula:
\(m = \frac{3 - 1}{4 - (-1)}\)
Simplify the numerator and denominator separately:
Numerator: \(3 - 1 = 2\)
Denominator: \(4 - (-1) = 4 + 1 = 5\)
Write the slope as the simplified fraction:
\(m = \frac{2}{5}\)
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