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What is the rule for the function shown in the table?

x|-1|0|1|2
y|-2|1|4|7

A. y = 1/3x + 1
B. y = 3x +1
C. y = 1/3x
D. y = 1/2x + 1

Sagot :

naǫ
It's a linear function.
[tex]y=mx+b \\ \\x_1=-1 \\ y_1=-2 \\ \\ x_2=0 \\ y_2=1 \\ \\ m=\frac{y_2-y_1}{x_2-x_1}=\fac{1-(-2)}{0-(-1)}=\frac{1+2}{0+1}=\frac{3}{1}=3 \\ \\ y=3x+b \\ (0,1) \\ 1=3 \times 0+b \\ 1=0+b \\ b=1 \\ \\ \boxed{y=3x+1} \Leftarrow \hbox{answer C}[/tex]
ipadcracked123

Answer:

The answer is B: y = 3x + 1

Step-by-step explanation:

Look at the response above this to see the explanation!

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