Select the number line that shows that two opposite numbers have a sum of 0.

Through: (-3,-3) parallel to y= 7/3x+3

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how