Hey!
Here's how you would solve it with elimination:
-2x + 3y = 7
5x + 8y = -2
Multiply first equation by 5 and the second one by 2:
-10x + 15y = 35
10x + 16y = -4
Add the two equations:
+
------------------------
31y = 31
y = 1
Plug this back into one of the original equation:
5x + 8(1) = -2
5x + 8 = -2
5x = -10
x = -2
Now you have your answer:
C (third graph, the parabola); To find if it is a function or not draw a vertical line on the graph. If the vertical line could never intercept the figure more than once anywhere on the graph then it is a function.
Answer:
Step-by-step explanation:
r = 8 units
Area = (1/4)πr²
