Question

If you change the y-intercept in the equation y = x + 7 to y = x + 11, how will its graph change?


A.
It will increase at a faster rate than before.

B.
It will increase at a slower rate than before.

C.
The starting value will increase.

D.
The starting value will decrease.

Answer 1

What does "y-intercept" mean if you're looking at a graph?

Answer 2

im not sure im not good at graphing

Answer 3

So if you have a graph, the y-intercept and x-intercepts are where the line hits the y and x axes.

Answer 4

What can you tell about the value of x at the y intercept?

Answer 5

like y goes up and down and x goes side to side

Answer 6

Those are the "x axis" and the "y axis." At the center, where they meet (the origin) is where x and y both are 0.



Straight up the "y axis" the values of y change, but the value of x stays 0

Straight across the "x axis" the values of x change, but y stays 0.


And at the y intercept, x = 0. So if we call that the "starting value:"

Looking at the given equation, what can you tell me about each value of y given that x = 0?

y = x + 7 with x = 0 = ?


and


y = x + 11 with x = 0 = ?

Answer 7

ohh okay can I ask if it is C?

Answer 8

How would you justify that answer if you had to?

Answer 9

Just with words is fine ^_^

Answer 10

because it would increase until they meet

Answer 11

What's "they?" And I'm not sure what you're saying....

Answer 12

(you are correct, by the way, just wanting to know how you got there)

Answer 13

(rather, your multiple choice is correct. Your justification isn't making good sense to me.)