Respuesta :
Your Question is not well presented.
See Question Below
Which table has a constant of proportionality between y and x of 1/6? (choose 1 answer.)
A:
x--> 15 ---19[tex]\frac{1}{2}[/tex] --- 36
y--> 5 ---- 6[tex]\frac{1}{2}[/tex] ---- 12
B:
x--> 12 ---13[tex]\frac{1}{2}[/tex] --- 24
y--> 2 ---- 3[tex]\frac{1}{2}[/tex] ---- 14
C:
x--> 18 --- 27 --- 33
y--> 3 ---- 4[tex]\frac{1}{2}[/tex] ---- 5[tex]\frac{1}{2}[/tex]
Answer:
Table C has 1/6 as the constant of proportionality between y and x
Step-by-step explanation:
Given
Table A, B, C
Required
To check which of the tables has a constant of proportionality of 1/6
The constant of proportionality is calculated by dividing individual values of y column with x column.
Mathematically, this is represented by
[tex]k = \frac{y}{x}[/tex]
Where k is the constant of proportionality
Recall Table A
x--> 15 ---19[tex]\frac{1}{2}[/tex] --- 36
y--> 5 ---- 6[tex]\frac{1}{2}[/tex] ---- 12
When x = 15, y = 5.
The constant of proportionality becomes
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{5}{15}[/tex] --- Simplify fraction to lowest term by dividing by 5
[tex]k = \frac{1}{3}[/tex]
So, when x = 15, y = 5.
[tex]k = \frac{1}{3}[/tex]
[tex]\frac{1}{3}[/tex] is not equal to [tex]\frac{1}{6}[/tex]; So, we do not need to check further in table A.
Hence, table A does not have 1/6 as the constant of proportionality between y and x
We move to table B
Recall Table B
x--> 12 ---13[tex]\frac{1}{2}[/tex] --- 24
y--> 2 ---- 3[tex]\frac{1}{2}[/tex] ---- 14
When x = 12, y = 2.
The constant of proportionality becomes
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{2}{12}[/tex] --- Simplify fraction to lowest term by dividing by 2
[tex]k = \frac{1}{6}[/tex]
We can't conclude yet, if the constant of proportionality between y and x in table B is [tex]\frac{1}{6}[/tex] until we check further
When [tex]x = 3\frac{1}{2} , y = 13\frac{1}{2}[/tex]
The constant of proportionality becomes
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{3\frac{1}{2}}{13\frac{1}{2}}[/tex] --- Convert to decimal
[tex]k = \frac{3.5}{13.5}[/tex] Simplify fraction to lowest term by dividing by 0.5
[tex]k = \frac{3.5/0.5}{13.5/0.5}[/tex]
[tex]k = \frac{7}{27}[/tex] -- This cannot be simplified any further
[tex]\frac{7}{27}[/tex] is not equal to [tex]\frac{1}{6}[/tex]; So, we do not need to check further in table B.
Hence, table B does not have 1/6 as the constant of proportionality between y and x
We move to table C
Recall Table C
x--> 18 --- 27 --- 33
y--> 3 ---- 4[tex]\frac{1}{2}[/tex] ---- 5[tex]\frac{1}{2}[/tex]
When x = 18, y = 3
The constant of proportionality becomes
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{3}{18}[/tex] --- Simplify fraction to lowest term by dividing by 3
[tex]k = \frac{1}{6}[/tex]
We can't conclude yet, if the constant of proportionality between y and x in table C is [tex]\frac{1}{6}[/tex] until we check further
When x = 27, [tex]y = 4\frac{1}{2}[/tex]
The constant of proportionality becomes
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{4\frac{1}{2}}{27}[/tex] --- Convert to fraction to decimal
[tex]k = \frac{4.5}{27}[/tex] Simplify fraction to lowest term by dividing by 4.5
[tex]k = \frac{1}{6}[/tex]
We still can't conclude until we check further
When x = 33, [tex]y = 5\frac{1}{2}[/tex]
The constant of proportionality becomes
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{5\frac{1}{2}}{33}[/tex] --- Convert to fraction to decimal
[tex]k = \frac{5.5}{33}[/tex] Simplify fraction to lowest term by dividing by 5.5
[tex]k = \frac{1}{6}[/tex]
Notice that; for every value of x and its corresponding value of y, the constant of proportionality, k maintains [tex]\frac{1}{6}[/tex] as its value
Hence, we can conclude that "Table C has 1/6 as the constant of proportionality between y and x"
Answer:
C is the right answer.
Step-by-step explanation:
Khan Academy
Otras preguntas
