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can someone help me in math?
1. Suppose y varies directly with x and y = 14 when x = –4. What is the value of y when x = –6? (1 point)
–21
10
18
21
2. Suppose y varies directly with x and y = 25 when x = 140. What is the value of x when y = 36? (1 point)
140
165
201.6
176
3. The point (12, 9) is included in a direct variation. What is the constant of variation? (1 point)
1/2
3/4
1
2
 2 years ago
 2 years ago
can someone help me in math? 1. Suppose y varies directly with x and y = 14 when x = –4. What is the value of y when x = –6? (1 point) –21 10 18 21 2. Suppose y varies directly with x and y = 25 when x = 140. What is the value of x when y = 36? (1 point) 140 165 201.6 176 3. The point (12, 9) is included in a direct variation. What is the constant of variation? (1 point) 1/2 3/4 1 2
 2 years ago
 2 years ago

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HarkiratBest ResponseYou've already chosen the best response.8
In case of direct variation, x x1 x2 x3  = constant, so  =  =  y y1 y2 y3 i) y = 14 when x = –4. What is the value of y when x = –6? (1 point) 4 6 so  =  14 ? 4* ? = 6 * 14 ? = 84/4 = 21 so when x = 6, y is 21.
 2 years ago

HarkiratBest ResponseYou've already chosen the best response.8
2. Suppose y varies directly with x and y = 25 when x = 140. What is the value of x when y = 36? 140 ? so  =  25 36 140 * 36 = ? * 25 5040/25 = ? 201.6 = ? so when y=36, then x=201.6
 2 years ago

HarkiratBest ResponseYou've already chosen the best response.8
3. The point (12, 9) is included in a direct variation. What is the constant of variation? x y 9 3 constant =  or  =  =  y x 12 4 so constant is 3/4
 2 years ago
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