Question

How many solutions does the system have?

x = -4y + 4
2x + 8y = 8

A. one solution

B. two solutions

C. infinitely many solutions

D. no solution

Answer 1

A. one solution. there is one point that satisfies. if you want to check, graph both functions and find the intersect. that point, and that point only, will satisfy both equations.

Answer 2

thank you

Answer 3

that is wrong

Answer 4

they are the same equation there are infinitely many solutions

Answer 5

use substitution

Answer 6

use nothing
they are the same equation

Answer 7

lol

Answer 8

x = -4y + 4
2x + 8y = 8
-----------------
2x + 8y = 8
2(-4y + 4) = 8
-8y + 8 = 8
-8y = 0
--- ---
-8 -8

y = 0

----------------
x = -4y + 4
x = -4(0) + 4
x = 0 + 4
x = 5

----------------------------

Solution (5, 0)
1 solution