Ok I’ll follow you but I’m not active on it
In the expression f(x)=23, x is not a variable. f(x) means “a function of x” or “f of x” and is in practice another way of substituting for the variable y, that is, we are saying:
y=23.
That means x is unspecified and could be anything. So on the xy plane, this is a straight horizontal line, 23 units above the x axis. That would be the best way to interpret this, although it is a little ambiguous.
Usually functions of x are expressed in terms of x, such as:
f(x) = x^2
2:4
4:8
5:10
200:400
This is because if you divide each ratio you get 1/2
Answer:
Step-by-step explanation:
<u>Given function:</u>
<u>x-coordinate of the vertex is:</u>
<u>The axis of symmetry is the vertical line that passes through the vertex:</u>
- x = -3 is the line we need
1)you have to do 220miles multiplie by 7 divide by 4
OR
2)220miles divide by 4 multiplie by7
remaibders is the same thing ,the same answer