Questions:
(a) What is a simplified expression for (x + y) – (x – y)?
(b) Carlotta thinks that 
is the same as 
. Which statement shows that it is NOT the same?
Answer:
Step-by-step explanation:
Solving (a):
Given
Required
Simplify
Open brackets
Collect Like Terms
Solving (b):
Given
and
Required
Which expression shows they are not the same
The expression that shows this is:
Take for instance; y=2
Substitute 2 for y in
Evaluate all exponents
The above expression supports
Answer:
Step-by-step explanation:
we are given the endpoint i.e P and Q of a line segment
we want to figure out the Midpoint of the Line segment
in order to do so we can use Midpoint formula given by
so let
substitute
simplify addition:
simplify division:
hence,
the Midpoint of the line segment is (3,1)
C
If we drew a line of best fit, the gradient would be roughly equal to 1, and the y intercept would be at around -4
Answer:
1 is greater than 2 is 5
Step-by-step explanation:
12
25
8
19
22
i don’t know if i’m completely right
