What is the question? i dont understand.
Slope (m) =
=
=
= -3
y - y₁ = m(x - x₁) ; where (x₁, y₁) is the point and m is the slope
y - 15 = -3(x + 2)
y - 15 = -3x - 6
y = -3x + 9
A triangle adds up to 180 degrees.
67 + 52 + x = 180
x + 119 = 180
x = 61
Measure of an inscribed angle in a circle is half the measure of the intercepted arc