Question

How to find y intercept, symmetry point, and axis of symmetry

Answer 1

here is an example \[y=x ^{2}-2x-3\]

Answer 2

V(1,-4)

Answer 3

Are you asking how to find the y-intercept in this problem or just any problem in general?

Answer 4

How can I find y-int, sym point, and axis of sym.?

Answer 5

well pretty much both lol

Answer 6

The y-int is (0-3) but, why is x 0?

Answer 7

(0,-3)*

Answer 8

Is x=0 because it's only on the y axis?

Answer 9

in other words, when it comes to finding the y-intercept, x is always 0?

Answer 10

@DF001 Have you ever seen a graph that shows the y-intercept? Have you heard of y = mx + b?

Answer 11

yes but i never really knew what an y-intercept is

Answer 12

The y-intercept is when the line crosses into the y-axis

Answer 13

For example:

Answer 14

I notice how many questions involving this topic, x value is always 0 for y-intercept

Answer 15

do you notice the y-intercept? (Where the line goes into the y-axis)

Answer 16

oh so I was correct. x is always 0 an y-int

Answer 17

yes i see, y-int is the point that intersect the line

Answer 18

I am not sure what you mean, however, the y-intercept can be any number of the graph...as well as 0.

For example: y =2x + 0, can be seen as y =2x.

Answer 19

I hope you understand.