By definition of supplementary angles, m∠1 + m∠2 = (a) and m∠2 + m∠3 = (b). Then, m∠1 + m∠2 = m∠2 + m∠3 by the (c). Subtract m∠2 from each side. You get m∠1 = (d), or ∠1 ≅ (e).

the first dot plot best represents the data

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  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.