Mathematics: Asweater costs a department store $9.00. the selling price of the sweater is $43.99. what is the markup rate of the sweater?

Asweater costs a department store $9.00. the selling

robinsonchristopher0

15.03.2021

The slope of the line is $\frac{-5}{3}$ ⇒ D.

Step-by-step explanation:

The rule of the slope of a line is

m = $\frac{y2-y1}{x2-x1}$ (x1, y1) and (x2, y2) are two points lie on the line

Use the given figure to find two points on the line

→ From the given figure

∵ The line passes through points (0, 2) and (3, -3)

∴ x1 = 0 and y1 = 2

∴ x2 = 3 and y2 = -3

→ Substitute them in the rule of the slope above to find it

∵ m = $\frac{-3-2}{3-0}=\frac{-5}{3}$

∴ m = $\frac{-5}{3}$

∴ The slope of the line is $\frac{-5}{3}$

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