Math - Algerba
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9/11/2017 2.2 Assignment-javon simmons
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Student: javon simmons Date: 9/11/17
Instructor: Maureen Baylis Course: Alg 2/Trig Block 2 Assignment: 2.2 Assignment
Identify the constant of variation.
y = x 3 5
The constant of variation is k .= (Type an integer or a fraction.)
Identify the constant of variation.
y x 02 − 5 =
The constant of variation is k .= (Type an integer or a fraction.)
Determine whether y varies directly with x. If so, find the constant of variation and write the function rule.
x y 22 11 28 14 42 21
Does y vary directly with x?
No Yes
What is the constant of variation? Select the correct choice and fill in any answer boxes in your choice below.
A. k (Simplify your answer. Type an integer or a fraction.)=
B. There is no constant of variation.
What is the function rule? Select the correct choice and fill in any answer boxes in your choice below.
A. y = (Simplify your answer. Use integers or fractions for any numbers in the expression.)
B. There is no function rule.
For the function, determine whether y varies directly with x. If so, find the constant of variation and write the function rule.
x y 2 6 6 15 11 17
Select the correct choice below and, if necessary, fill in the answer box within your choice.
A. Yes, y varies directly with x. The constant of variation is k and the function rule is .
=
(Simplify your answers. Use integers or fractions for any numbers in the expression.) B. No, y does not vary directly with x.
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9/11/2017 2.2 Assignment-javon simmons
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Determine whether y varies directly with x. If so, find the constant of variation.
y x 0− 15 =
Does y vary directly with x?
A. Yes, and the constant of variation is k . (Type an integer or a fraction.)=
B. No
Suppose y varies directly with x, and y when x . Find x when y .= 12 = − 3 = 20
x (Simplify your answer.)=
Solve the following variation problem.
The interest on an investment varies directly as the rate of interest. If the interest is $ when the interest rate is47
%, find the interest when the rate is4 %.6.1
The interest is $ . (Round to the nearest cent.)
Make a table of x- and y-values and use it to graph the direct variation equation.
x = − y 1 4
Choose the correct graph of the direct variation below.
A.
-24 24
-24
24
x
y
B.
-24 24
-24
24
x
y
C.
-24 24
-24
24
x
y
D.
-24 24
-24
24
x
y
Write and graph a direct variation equation that passes through the given point.
( , )5 − 4
Write the direct variation equation.
y (Use integers or fractions for any numbers in the expression.)=
Choose the correct graph below.
A.
-20 20
-20
20
x
y
B.
-20 20
-20
20
x
y
C.
-20 20
-20
20
x
y
D.
-20 20
-20
20
x
y
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9/11/2017 2.2 Assignment-javon simmons
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10. If y when x , find y when x , given that y varies directly with x.=
1 2
= 2 = 3
y (Type an integer or a fraction.)=
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