What is the measure of angle bac?
abcd is a square
30
45
60
90

B:45 degrees.

Step-by-step explanation:

We are given that a square ABCD .

We have to find the measure of angle BAC.

We know that each angle of square is of 90 degrees.

We know that diagonal AC bisect the angle BAD.

Therefore, measure of angle BAC=Measure of angle CAD.

Measure of angle BAD=

Hence, the measure of angle BAC=45 degrees.

B:45 degrees.

  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.