Question

Are the graphs of the lines in the pair parallel? Explain. y = 6x + 9 27x – 3y = –81

Answer 1

For the 2nd equation, you need solve for y to get it by itself so once thats done you get y=9x+27 but since the x values (also the slope) aren't equal, they can't be parallel

Answer 2

the answer is No, because the slopes are not the same

Explanation:

in the equation: y=6x+9

the slope is 6

in the equation: 27x - 3y= -81

the slope is 7

the slopes are NOT the same