Answer:
the domain of the function is all real numbers less than or equal to 0
2a+8a
Add 2 and 8.
2a+8a=10a
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (5,-4).
It has a coefficient of 4 :)
We can use proportions
12/x = 10/5
12*5 = 10x
60 = 10x
x = 6
Check
12/6 = 10/5
2 = 2