Question

HELP ME PLEASE!!!!!!!!!!!!! Which of these ordered pairs is the best estimate of the solution of the system y = 3x + 2 and y = -1/4 x + 1? A. (0.5, 0.5) B. (-0.3, 1.1) C. (1.2, 0.8) D. (0.8, -0.5)

Answer 1

y = 3x + 2 -(1)
y = -1/4 x + 1 -(2)
(1) - (2)
0 = 13/4 x +1
x = -1/ (13/4) = ... ?

Answer 2

can you write out the steps and give answer. That way I can incorporate the steps into any other problem I might have

Answer 3

I have written the steps..... A more detailed one
y = 3x + 2 -(1)
y = -1/4 x + 1 -(2)
(1) - (2)
y -y = (3x + 2) - (-1/4 x + 1)
0 = 3x + 1/4x + 2 - 1
0 = 13/4 x +1
x = -1/ (13/4) = ... ?

Answer 4

You can get the answer by using a calculator
x = -1/ (13/4) = - 4 /13 = ... ?