It is -27 because a negative number times a positive number is negative. In this case it is -9 times (3) which is -27.
max = 5, min = -1
mid = (5-1)/2 = 2
{observe for sinx,
max = 1, min, = -1, mid=0}
since mid=2 we can let the function
y=a•sin(bx+c)+2
2a=max-min=6
a=3
y=3sin(bx+c)+2
the graph cross (0,2) so
2=3sin(c)+2
3sin(c)=0
c=0 or c=π
since the graph go down after (0,2), then we choose c=π.
max=5 with x=-1, so
5=3sin(-b+π)+2
sin(-b+π)=1
b=π/2
at last the get the exact equation, that's
(7-b)+(3b+2)
Steps:
Simplify
7-b+3b+2
= 7+-b+3b+2
Combine like terms
=7+-b+3b+2
= (-b+3b)+(7+2)
= (-b+3b) + (7+2)
2b+9
Hope I did it right ^.^
Answer:
slope: 3/5
y int: 3
Step-by-step explanation
I put the equation into desmos, very reliable and my teacher introduced me to it
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