Question

y=3/4sin(−4/5x)

(a) Amplitude
3/4
(b) Period
7.9
(c) Domain
(-INF, INF)

(d) Range
[-3/4 , 3/4 y=34sin(−45x)

(a) Amplitude
3/4
(b) Period
7.9
(c) Domain
(-INF, INF)
(d) Range
[-3/4, 3/4]


check my work thank you

Answer 1

ok sorry for posting it twice lol

Answer 2

(a) ok
(b) ok, but I would have left it as 5π/2, which is exact
(c) ok
(d) ok