Answer:
"You could set up the relation as a table of ordered pairs. Then, test to see if each element in the domain is matched with exactly one element in the range. If so, you have a function!"
Step-by-step explanation: Look it up :)
Answer:
I cannot access your picture
Step-by-step explanation:
Answer: 163.90
Step-by-step explanation:
Answer:

Step-by-step explanation:
Treat this the same way you would an equation. Isolate the variable. Add 6 to both sides:

Divide both sides by 5:

The value of x is less than 3.
:Done
If you were to plot two perpendicular lines on a graph, you'd see that they form 4 angles that are all right angles/90°. You can imagine this by picture a + sign.