Answer:
The first statement: "Her first mistake was in Step 2. She added 0.2 to each term instead of multiplying by 0.2."
X-int. is (5/7,0)
y-int. is (0,5)
f(x) increase by a factor of 3
Explanation:
Given that f(x)= 3* and the interval is x=4 to x=57
Now we put the value for x is 4 to 57 then value of f(x) increase with the multiply of 3.
Because the x is multiplied with 3 i.e., 3*
So f(x) increase by a factor of 3.
If we put x=4, then f(x)= 12 (∵ 3×4=12)
If we put x=5, the f(x)= 15 (∵ 3×5=15)
If we put x=6,the f(x)= 18 (∵ 3×6=18)
similarly., values of x= 7,8,9,...155.
Then,
If we put x=56, the f(x)=168
This process will continue until f(x)=171 for x=57.
Let 
be the line given by the vector equation
.
First, we use the director vectors of the lines L1 and L2 to get the
vector equation of the plane containing them, which we denote by 
. This is,
We observe that 
. Therefore, the vector equation of defines a plane and 
is a normal vector to 
Finally, the vector equation for the wanted plane, which we denote by 
, is
Thus, if 
, then 
and since is parallel to , then it is perpendicular to .
