QUESTION 1a.
We want to add

We group similar terms to get

Simplify:

QUESTION 1b.
The given function is:

Expand the parenthesis to obtain,

Group similar terms,

Simplify:

QUESTION 2
The given function is

The zeros of this function is given by;

Split the middle term.

Factor;




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Answer: (-6,-4) (-2,-2) (-1,0) (2,6)
Step-by-step explanation:
We can see that points (2,0) and (4,1) isn't plotted on the line
Look at the picture.
ΔABD and ΔBCD are similar, therefore:

Use Pythagorean theorem:
Answer:
Graph C is the answer.
Step-by-step explanation:
From the graphs attached,
Graph A
Given graph represents a cubic function.
Graph B
This graph represents a piecewise function.
Graph C
This graph represents an exponential function.
Graph D
Given graph represents a quadratic function.
Graph C is the answer.