Use the table to answer the question. x
y
-1 -1
0 1
1
3
2
5
Which equation best models the relationship shown in the table?
O A. y = x - 1
O B. y = x + 1
OC. y = 2x – 1
d
D. y = 2x + 1

Given:

The table of values of a linear relationship.

x        y

-1       -1

0       1

1        3

2       5

To find:

The equation for the given table of values.

Solution:

If a linear function passes through the two points, then the equation of the linear relationship is

Consider any two point from the given table. Let the two points are (-1,-1) and (0,1). So, the equation of the linear relationship is

Using distributive property, we get

Subtracting 1 from both sides, we get

Therefore, the required equation is . Hence, the correct option is D.

answer: for each 3 girls there is 2 boys . 3: 2

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