A line passes through the origin and the point $(2,2)$. The angle it makes with the positive x-axis is:
A$45^\circ$
B$30^\circ$
C$60^\circ$
D$90^\circ$
Answer & Solution
Correct answer: A. $45^\circ$
Slope = (2−0)/(2−0) = 1 = tanθ ⟹ θ = 45°.
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