{(-12, 3) (-5,4) (-6,3)
(8.-9) (-6,2) (1,7)

is it a non function or a function?

No

Step-by-step explanation:

These points would not be a function as one x value shares more than one y value. The -6 shares both 2 and 3 as a y value.

In order to have a function, and x value can only have one y value. However, a y value can correspond to multiple x values and it can still be a function.

b. astronomers

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)