Question

Using the table of ordered pairs, which equation shows the linear relationship between the x and y values?

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x|y

-2|2

1|5

3|7

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A. y = x + 4

B. y = -x

C. y = x - 4

D. y = 4 - x

Answer 1

A y = x + 4

yeh i did the test

Explanation:

Answer 2

y = x + 4

Explanation:

y = mx + b (m = slope; b = y-intercept)

I used 2 points (-2 , 2) and (1 , 5) to calculate the slope of the line

m= (y₂ - y₁)/(x₂ - x₁)

(5-2)/(1--2) = 3/3= 1

y = 1x + b

using point (1, 5)

5 = 1(1) + b

5 = 1 + b

b = 5-1

b=4

y= 1x + 4 or simply y= x + 4