How do i know which one to use?
SOH-CAH-TOA

S is sine, C is cosine and T is tangent

Step-by-step explanation:

For sine, it's Opposite/Hypotenuse

For Cosine, it's Adjacent/Hypotenuse

and for Tangent, it's Opposite/Adjacent.

Hope this helps.

Answer

SOH is Sine: Opposite leg on Hypotenuse.

CAH is Cosine: Adjacent leg on Hypotenuse.

TOA is Tangent: Opposite leg over Adjacent leg.

Step-by-step explanation:

Depending on what you ask to find the problem.

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )