Answer:
C. 1/3x + 5
Step-by-step explanation:
Plugging in the values for x, we get:
y = 1/3(0) + 5 = 5
y = 1/3(6) + 5 = 7
y = 1/3(12) + 5 = 9
y = 1/3(15) + 5 = 10
I almost broke my neck trying to read this problem. :(
Subtract 10x
10x + y = -19
10x + 3y = -17
You would get:
-2y = -2
Two negatives make a positive number! Divide
y = 1
Plug in
10x + (1) = -19
10x = -20
Divide
x = -2
Your solutions are
x = -2
y = 1
Test contains 10 three-point questions and 14 five-point questions.
Answer:

Try to solve the similtanious equation to find the first term and the common difference, then use that information to figure out the 80th term... Update me if you need further help ...