Please answer quickly and correctly please answer all question
1 answer:
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Answer:
Step-by-step explanation:
1)
Altitude = 2
Period = 2pi/(1/2) = 4pi
(since 1/2 is coefficient of x)
Altitude interval = [-4,0]
Domain interval = set of all real numbers
Phase shift = 0
Vertical shift = 2 down
2) y=-4sin(2x+pi/2)-2
Altitude = 4
Period = 2pi/(2) = pi
(since 2 is coefficient of x)
Altitude interval = [-6,2]
Domain interval = set of all real numbers
Phase shift = pi/2
Vertical shift = 2 down
Answer:
y=2x-5
Step-by-step explanation:
, and m=2
, -(-5)-Two negatives make it positive, and you distribute the 2
, you now subtract 5 to get y by itself to get your answer of
*NOTE* (0,-5) is the y-intercept, so you could have used the linear equation of y=mx+b, m=2, and b(y-intercept)=-5
giving you y=2x-5
Step-by-step explanation:
To figure out your x-intercepts and y-intercepts you have to redo the equation and make it equal to zero.
Step 1: 8x + 9y - 72 = 0
Step 2: 8x + 9y = 72
Now you can figure out your intercepts! As long as you use the STANDARD FORM EQUATION which is Ax + By = C
Y-INTERCEPT (vertical line): ( , 0 )
X-INTERCEPT (horizontal line): ( 0 , )
Insert your numbers how it shows in the standard form equation and you should get something like this:
Y-INTERCEPT: ( , 0 )
<em>Simplified Y-INTERCEPT: </em>( 8 , 0 )
X-INTERCEPT: ( 0 , )
<em>Simplified X-INTERCEPT: </em><em> ( 0 , 9 )</em>
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Insert that into your graph and you should be able to get your answer.