What is positive correlation?
1 answer:
In a graph, it is when two variables move in an upwards direction.
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8x-2y=-6
-20x+5y=15
X=(-6+2y)/8
-20((-6+2y)/8)+5y=15
(120-40y)/8+5y=15
15-20y+5y=15
-15y=0
y=0
X=(-6+2 x 0)/8
X=-½
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Answer:
a) 2f(x) = 4x - 2
b) f(2x) = 4x - 1
Explanation:
Given function:
a) 2f(x)
2f(x) = 2(2x - 1)
= 4x - 2
b) f(2x)
f(2x) = 2(2x) - 1
= 4x - 1
