Does the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the tabl
e.
(x) 1 l 2 l 5 l 10
(y) 40 l 20 l 8 l 4
A: Direct Variation; y= 40x
B: Inverse Variation; y= 1/40x
C: Direct Variation; xy= 40
D: Inverse Variation; xy= 1/40
(x) 1 l 2 l 5 l 10
(y) 40 l 20 l 8 l 4
A: Direct Variation; y= 40x
B: Inverse Variation; y= 1/40x
C: Direct Variation; xy= 40
D: Inverse Variation; xy= 1/40
1 answer:
We know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx
and
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form y*x=k or y=k/x
</span>see the attached figure
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx
and
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form y*x=k or y=k/x
the answer is<span>
represent an inverse variation
k=40
</span>
</span>see the attached figure
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with that template in mind.
A = -1, reflected over the x-axis
B = 1, C = 2, horizontal shift of C/B or 2, to the left.
D = 4, shifted upwards by 4 units.
check the picture below.
