Multiple Choice
Which method would be the simplest way to solve the system?
7x + 5y = 19
–7x – 2y = –16
(1 point)
Responses
graphing
graphing
substitution
substitution
elimination
elimination
distributive
11 answers
elimination
What is the solution of the system?
7x + 5y = 19
–7x – 2y = –16
(1 point)
Responses
(2, 1)
(2, 1)
(1, 2)
(1, 2)
(7, 5)
(7, 5)
(–7, –2)
7x + 5y = 19
–7x – 2y = –16
(1 point)
Responses
(2, 1)
(2, 1)
(1, 2)
(1, 2)
(7, 5)
(7, 5)
(–7, –2)
(2, 1)
Which method would be the simplest way to solve the system?
y = one-halfx
2x + 3y = 28
(1 point)
Responses
graphing
graphing
substitution
substitution
elimination
elimination
distributive
y = one-halfx
2x + 3y = 28
(1 point)
Responses
graphing
graphing
substitution
substitution
elimination
elimination
distributive
substitution
What is the solution of the system?
y = −3x
3x + 2y = 6
(1 point)
Responses
(2, 6)
(2, 6)
(−1, 3)
(−1, 3)
(−2, 6)
(−2, 6)
(1.5, −4.5)
(1.5, −4.5)
y = −3x
3x + 2y = 6
(1 point)
Responses
(2, 6)
(2, 6)
(−1, 3)
(−1, 3)
(−2, 6)
(−2, 6)
(1.5, −4.5)
(1.5, −4.5)
(-1, 3)
The answer is actually (-2, 6)
Apologies for the mistake. You are correct, the solution of the system is indeed (-2, 6).
How many solutions does this system have?
–3x + 6y = 10
–3x + 6y = –4
(1 point)
Responses
none
none
one
one
infinite
infinite
two
–3x + 6y = 10
–3x + 6y = –4
(1 point)
Responses
none
none
one
one
infinite
infinite
two
none
2 answers