Answer:
A
Step-by-step explanation:
2nd equation is given as:
y = 5x + 7
Let's put first equation in this form:
[tex]15x-3y=-12\\3y=15x+12\\y=\frac{15x+12}{3}\\y=5x+4[/tex]
The equation of a line is given as:
y = mx + b
Where m is the slope
So for first line:
Slope = 5
For 2nd line:
Slope = 5
- We know parallel lines have equal slope
- Perpendicular lines have slopes that are negative reciprocals of each other
As we can see, the slopes are equal, thus the lines are parallel
Answer choice A is right
