1 of 51 of 5 Items
Question
Multiple Choice
Identify the choice that best completes the statement or answers the questions.
For questions 1–3, what is the solution of the system? Use substitution.
y = x + 6
y = 2x
(1 point)
Responses
(6, 12)
(6, 12)
(–12, –6)
(–12, –6)
(–6, –12)
(–6, –12)
(2, 4)
(6, 12)
2 of 52 of 5 Items
Question
3x + 2y = 7
–3x + 11 = y
(1 point)
Responses
(6, –3)
(6, –3)
(6, –7)
(6, –7)
negative four and nineteen over two
Image with alt text: negative four and nineteen over two
(5, –4)
(6, -7)
3 of 53 of 5 Items
Question
2x – y = –7
4x – y = –4
(1 point)
Responses
(–1.5, 4)
(–1.5, 4)
(1.5, 10)
(1.5, 10)
(4, –1.5)
(4, –1.5)
(–1.5, –2)
(1.5, 10)
4 of 54 of 5 Items
Question
For questions 4–5, how many solutions does the system have?
–4y + 4 = x
2x + 8y = 8
(1 point)
Responses
one solution
one solution
two solutions
two solutions
infinitely many solutions
infinitely many solutions
no solution
no solution
no solution
5 of 55 of 5 Items
Question
6x + 2 = y
3y – 18x = 12
(1 point)
Responses
one solution
one solution
two solutions
two solutions
infinitely many solutions
infinitely many solutions
no solution
no solution