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What is the equation of the function shown in the table?

Input x -2 -1 0 1 2
Output y -3 -1 1 3 5
y = - 1/2 x - 1
y = 2x + 1
y = 2x - 2
y = -2x + 1

Respuesta :

luclaporte2

Answer:

y = 2x + 1

Step-by-step explanation:

According to the table:

+1 +1 +1 +1

[x] -2 -1 0 1 2

[y] -3 -1 1 3 5

+2 +2 +2 +2

y = mx + b

b is y when x = 0

m is the change in y divided by the change in m = ∆y/∆x or slope.

+2/+1 = 2 = m

y = 1 when x = 0 so b = 1

therefore y = 2x + 1

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