Question

A line passes through the points (4, 9) and (12, 20). What is the slope of the line?

Answer 1

Answer:

$\frac{11}{8}$

Step-by-step explanation:

→ State the gradient formula

( y₂ - y₁ ) ÷ ( x₂ - x₁ )

→ Find x₁ , x₂ , y₁ and y₂

x₁ = 4 , x₂ = 12 , y₁ = 9 and y₂ = 20

→ Substitute in the values

$\frac{20-9}{12-4}$

→ Simplify

$\frac{11}{8}$