Answer:
A letter.
You can use any letter of the alphabet, but the ones that are most commonly used are x, y, and z.
The y-intercept is (0,7) and the x-intercept is (-2,0).
Answer:
C.
Step-by-step explanation:
i believe it is C but do not trust me on this :p
Factor first: (sinx+1)(2sinx-1)=0
sinx+1=0 or 2sinx-1=0
sinx=-1 or sinx=1/2
0≤x≤360, so x=270, or x=30 or x=150
