Answer:
B
Explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (1, 1) and (x₂, y₂ ) = (3, 9) ← 2 points on the line
m = = = 4 → B
The formula of a slope:
We have the points (1, 1) and (3, 9). Substitute:
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