For this case we have a direct variation of the form:
Where,
- <em>k: proportionality constant
</em>
We must find the value of k.
For this, we use the following data:
Therefore, replacing values we have:
Rewriting:
Clearing the value of k we have:
Therefore, the direct variation equation is given by:
Answer:
The quadratic variation equation for the relatonship is:
1.
the line of symmetry is x=2, means that the x coordinate of the vertex is x=2.
the point x=2 is the midpoint of the roots
and
.
so
Remark: in the x-axis, if c is the midpoint of a and b, then
2.
since
and
are roots
and
3.
equalizing:
in the left side factorize a, in the left side factorize 8:
![a[(x_1)^{2}-(x_2)^{2}] =8(x_1 -x_2)](https://tex.z-dn.net/?f=a%5B%28x_1%29%5E%7B2%7D-%28x_2%29%5E%7B2%7D%5D%20%3D8%28x_1%20-x_2%29)
in the right side use the difference of squares formula:
simplify by
substitute
with 4:
a=2
Answer: C)2
Answer:
c. $399.20
Step-by-step explanation:
multiply 499 by .20 and get 99.8 subtract this from 499 get 399.20
Answer: 1, 13
Step-by-step explanation:
1, 13 because 13 is a prime number. And prime numbers don't have factors.
Hope this helps :)
Answer:
6/5x - 5
Step-by-step explanation:
-5 - 1 = -6
0-5= -5
-6/-5= 6/5
the y intercept is on the picture.
