Directions for #1-12: Tell whether the equation represents direct variation, inverse variation, or neither.
Question 1
1.
3x + y = 6
Question 2
2.
y = 7x
Question 3
3.
xy = 8
Question 4
4.
Question 5
5.
y = -2x
Question 6
6.
x = 7y
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Given that y varies directly with x, use the specified values to write an inverse variation equation that relates x and y. Then find the value of y when x =3.
Question 13
13.
(Follow directions above) x = 5, y = 25
Just write the number for your answer
Question 14
14.
(Follow directions above) x = 3, y = 18
Just write the number for your answer
Question 15
15.
(Follow directions above) x = 25, y = 250
Just write the number for your answer
Given that y varies inversely with x, use the specified values to write an inverse variation equation that relates x and y. Then find the value of y when x =3.
Question 16
16.
(Follow directions above) x = 4, y = 3
Just write the number for your answer
Question 17
17.
(Follow directions above) x = 10, y = 6
Just write the number for your answer
Question 18
18.
(Follow directions above) x = 6, y = 6
Just write the number for your answer
Question 19
19.
(Follow directions above) x = -5, y = 9
Just write the number for your answer
Question 20
20.
(Follow directions above) x = -2, y = 12
Just write the number for your answer
Directions for #21-22: Identify the direct variation equation from the graph.
Question 21
21.
(Follow the directions above)
Question 22
22.
(Follow the directions above)
Directions for #23-30: Select all the transformations that are happening to the function.