A. y=4x
B. y=1/4x
C. y=x+9
D. y=x-9
MATH HELP FAST Which is the direct linear variation equation for the relationship. The variable y varies directly with x and y=12 when x=3.?
2016-02-22 5:43 pm
回答 (3)
2016-02-22 5:48 pm
y ∝ x
Then, y = kx
where k is a non-zero constant.
When x = 3, y = 12 :
12 = k(3)
k = 4
Thus, y = 4x
...... The answer is A. y = 4x
Then, y = kx
where k is a non-zero constant.
When x = 3, y = 12 :
12 = k(3)
k = 4
Thus, y = 4x
...... The answer is A. y = 4x
2016-02-22 6:54 pm
y = k x
k = y / x = 12 / 3 = 4
y = 4 x
k = y / x = 12 / 3 = 4
y = 4 x
2016-02-22 5:49 pm
A
收錄日期: 2021-04-18 14:30:21
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