Answer:

Step-by-step explanation:
Given.
Two points are given.
and 
An exponential function is in the general form.
-------(1)
We know the points
and 
put the first point value in equation 1


--------(2)
put the second point value in equation 1
----------(3)
Put the a value from equation 2 to equation 3


![b^{4} = 16\\b=\sqrt[4]{16} \\b=2](https://tex.z-dn.net/?f=b%5E%7B4%7D%20%3D%2016%5C%5Cb%3D%5Csqrt%5B4%5D%7B16%7D%20%5C%5Cb%3D2)
Put the b value in equation 2


Put the a and b value in equation 1

So, the exponential function that passes through the points
and
are
.
The percent of variation is 85.1%. If you enter the numbers into a calculator and store the regression equation, it will be the r^2 value when calculated.
Answer:
12
Step-by-step explanation:
Answer:
Step-by-step explanation:
Last option is correct
x+x+x =3x
Red colour shows value is negative
-1-1 = -2
Answer:
-42
Explanation:
(-6)(-7)(-1)
do (-6)(-7)
-negative sign and -negative sign= +positive sign
(-6)(-7)=42
(42)(-1)
+positive sign and -negative sign=-negative sign
answer:
-42