Answer: Slope is undefined. x=0
slope calculation: -3-4/0-0 = -7/0 and anything divided by 0 is undefined
the x value in the coordinates is 0 so it’s x=0 line.
vertical lines always have undefined slopes
Answer:
y = -1/3x + 4
Step-by-step explanation:
Perpendicular line are opposite and reciprocal.
So I flip 3x to 1/3 and change both signs. negative to positive and positive to negative.
Answer:

Step-by-step explanation:
We can model this function using the equation of a line:

Where a is the slope of the line and b is the y-intercept.
To find the values of a and b, we can use the two points given:
(-9, -3):


(-12, 4):


If we subtract the second equation from the first one, we have:




Then, finding the value of b, we have:



So the equation is:

Factor out the GCF first
3(2x² - x - 10)
3(2x - 5)(x + 2)