Answer: I guess b I don’t really know hope you get better help
Step-by-step explanation:
Answer:
a. 
b. 
c. 
d. 
Step-by-step explanation:
Gradient is just another similar term for slope l, 
, and it can be calculated by 
where 
and 1
is the 
-coordinates of point 
We let 
be point 
and 
be point 
, we can then write the equation:
.
It also says that the points are with a gradient of so 
. We can then write the equation:
Finding 
If 
:
Writing an expression for in terms of 
.
Writing an expression for in terms of
Finding if 
Answer:
(-4,-4)
Step-by-step explanation:
You can see the vertex from the graph
Answer:
4,n=4
Step-by-step explanation:
D=(n,-2) and E=(n,2)
the distance from D to E ,
√{(n-n)^2+(-2-2)^2}=√16=4
the co-ordinate of point C=(0,-2)
given,DC=DE
→√{(n-0)^2+(-2+2)^2}=√16
→n^2=16
therefore,n=4
