Answer:
Step-by-step explanation:
y = -1/3x + 2
m1 = -1/3
Slope of the perpendicular line = -1/m1 = -1 ÷ =
Equation of the required line : y = mx +b
y = 3x + b
Plugin x = 2 and y 10 in the above equation
10 = 3*2+ b
10 = 6 +b
10 - 6 = b
b = 4
Equation: y = 3x + 4
3 1/2 · 2 2/3
= 7/2 · 8/3
= 56/6
= 9 2/6
= 9 1/3
Answer
A. 9 1/3
Is there a picture?
α ≈ 76°
The vertices of a rectangle are right , that is 90°
Using the tangent ratio in right triangle ABC
tanα = = = = 4, then
α = (4) ≈ 76° ( to the nearest degree )