The function of f(x)=-x+4x-3 is 3x-3. I hope this helps. :)
Answer:

Step-by-step explanation:
Let us consider the equation 
For a quadratic equation in a standard form,
, the axis of symmetry is the vertical line
.
Here in this case we have, 
Putting the values we get,

We can see that the axis of symmetry is x=3 and the graph is giving minimum at x=3.
Therefore, the required equation is
. Refer the image attached.
Answer:
15
Step-by-step explanation:
(-7,0) and (8,0) are on the opposite side of origin of x axis
d = 8 - -7 = 15
(2, 8) because 8 is not negative
hope it helps,
xXbeautyXx
Answer:
The constant is 2.7. This number never changes.