Question

HELPP FOR BRIANLEST PLEASS

Answer 1

Answer:

first one

Step-by-step explanation:

uh yeah the first one because it the second one to the original problem

Answer 2

Answer:

x + 2y = -4

Step-by-step explanation:

A system of linear equations has one solution when the graphs intersect at one point.

Rewrite y = (1/2)x + 2 into the same format as the possible solutions and compare:

y = (1/2)x + 2  

multiply both sides by 2:  2y = x + 4

Subtract 2y from both sides:  0 = x - 2y + 4

Subtract -4 from both sides:  -4 = x - 2y

⇒ x - 2y = -4

Compare:

• 2x - 4y = 4  ⇒ parallel
• x + 2y = -4   ⇒ intersects at one point
• x - 2y = -4    ⇒ equivalent
• x - 2y = 4     ⇒ parallel