Parallel means "same slope," so y=mx+b where m is the slope. Therefore m=3/4
Now the new line's equation, in point-slope format: y-y1 = m (x-x1)
y-9 = 3/4 (x-4) ->> y-9 = 3/4x -3 ->> y=3/4x+6
The answer is the letter b cos u = 1 /sec u
When you use it in the left side of the identity that you want to verify, sec y cos y = 1 , you get this:
sec y cos y = 1
[sec y ] [ 1 / sec y ] = 1
[sec y] / [sec y] = 1
1 = 1 which proves the idenity.
He used four apples to make an apple pie. you can simply divide 12 by 3. 1/3 of 12 apples would be 4. if you think about it 2/3 would be 8 apples, adding four more apples would be 12 apples making that 3/3.
This downward-opening parabola has its vertex at x = -8, so the function is decreasing on the interval (-8, ∞).
