Question

The equation of a line is y = 2x + 3. What is the equation of the line that is parallel to the first line and passes through (2, –1)?

Answer 1

the slope is the same: 2
solve: -1 = 2 (2) + b
b = -5
equation: y = 2x -5

Answer 2

2x + y = 6
y = –2x + 3
y = 1/2x + 6
y = –2x – 6

Answer 3

what are those equations?

Answer 4

Answers.

Answer 5

they're incorrect. there can only be one equation

Answer 6

if you plug (2,-1) into the equations, you be able to see if they are right or not.

Answer 7

and parallel lines always have the same slope. since the question asks for an equation of a line parallel to the first equation, the slope must be the same which is 2 in this case