Answer: erm... the vertex it (1,-9)
Step-by-step explanation:
i think i did it right....not good at this stuff
Let's start with the x coordinates.
-8 is on the left, and -4 to the right, so that will help organize this.
the line goes from -8,-9 to -4,-8. it moved 4 over the x axis and rose 1 over the y axis.
rise/run so 1/4 is the slope.
y=(1/4)x - 7
Answer:
11
Step-by-step explanation:
x = -3
Substitute -3 with x
________________________
* = Multiplying
(-2*-3) + 5
= 6 + 5
= 11
I think you mean "a set of three points". What I would do is take one point, find the slope from that point to another one, and then find the slope from the same starting point to the third one. If the (absolute values of the) slopes from the same starting point to each of the others are equal, then the three points are collinear.
