Question

PLEASE HELP ASAP 15 BRAINLY POINTS

1) (multiple answers pick two) Does the equation represent a direct variation? If so, identify the constant of variation.
17y = 85x

A) Yes
B) No
C) 5
D) 1/5


2) Determine whether the relationship is a direct variation.
X : 3, -1 , -4
Y : -6, 2, 8

A) yes
B) No


3) Is the relationship shown a direct variation? (it's not absolute value is a table chart)
| X  | Y |
| -2 | 5  |
| 1  | 3  |
| 4  | 1  |

A) yes
B) No


4) Determine whether the relationship is a direct variation.
------------------------------
| X |   6    |   9    |   17  |
-------------------------------
| Y | 13.2 | 19.8 | 37.4 |
-------------------------------

A) yes
B) no

5) Determine which equation does NOT represent a direct variation.

A) 6x - y = 0
B) y = 4x + 1
C) y = -2x
D) y = 1/3x


6) (multiple answer pick 2) Tell whether the equation represents a direct variation. If so identify the constant of variation. y + 3x = 0

A) Yes
B) No
C) -3
D) 1/3
E) 3

Answer 1

1.) The answer is (B) No, because direct variation is written as y = kx, but the problem was not written that way.

2.) Answer: Yes; if you write x = ky, you will find that each x value given multiplied by a common k equals a corresponding y value.

3.) Answer: No; each x value does not multiply by a constant k to get the y values.

4.) Answer: Yes; each x value multiplies by 2.2 to get each corresponding y value.

5.) Answer: B; this is the only one that isn't or can't be written in y = kx form.

6.) Answer: Yes & -3; y + 3x = 0 can be written as y = -3x, which is a direct variation equation. The constant is just the -3.

Answer 2

1) b

2) no

3) c

4) a