Question

3. What is the slope of a line perpendicular to the line y =-2/3 x+12

Answer 1

Answer:

Slope of line (i) = 1.5

Step-by-step explanation:

• Line (i) is perpendicular to;

• Line (ii) whose equation is y = $-\frac{2}{3} x + 12$

The slope of line (ii) = $-\frac{2}{3}$

* Mathematics rule: The product of slopes of two perpendicular lines = -1

∴ The slope of line (i) = -1 ÷ $-\frac{2}{3}$ = 3/2 = 1.5