Question

HELP! precalc quizquestion need helppp:)

Answer 1

The equation for this one is f(x) = sin (-1.5x) + 6

Answer 2

THANKS... so a=? b=? ithankyoufor your helppp..

Answer 3

How did I find it? There:
When it says: f(0) = 6, you replace the x by 0 and solve it; amazingly, you find a.
f(0) = sin (b*0) + a
6 = sin(0) + a
sin0 = 0 so a = 6

Answer 4

You do exactly the same thing for b, but now you know what's a
5.5 = sin((pi/9)*b) + 6(value of a)
...
...
0=sin(b * pi/9) + 0.5
-0.5 = sin (pi/9 * b)
arcsin(-0.5) = pi/9 * b
now you have to use your calculator with the storage function

b = -1.5

:))

Answer 5

and b is greater than -9/2 and smaller than 9/2