The correct answer would be (4,-5)
4x^2 + 5xy - y^2 = 6
Implicitly differentiating both sides,
4(2x) + 5(x y' + y) - 2yy' = 0
where y' = dy/dx
8x + 5xy' +5y -2yy' = 0
combining y' terms
y' (5x-2y) +8x +5y = 0
y'(5x-2y) = -(8x+5y)
dy/dx = -(8x+5y)/(5x-2y)
or
dy/dx = (8x+5y)/(2y-5x)
r° = 158°
s° = 180° - r° = 180° - 158° = 22°
There is no graph for us to see
Answer:
B. -15
Step-by-step explanation:
Took the test, this question was correct when you choose -15.
