Correct answers only please! I keep losing points...
1 answer:
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Completing the square follows the principle of taking 
and converting it into 
where d is the 'correctional number' as I like to call it - i.e. the number that converts the expanded bracket into the +c, since the expanded bracket will give us 
.
In this case, 2/2=1 so we have the first part:
.
Expanding this gives us
. We need c to be 9, so we can just add 8.
Putting this together:
Now we can solve it more easily.
Rearranging:
In this case, 2/2=1 so we have the first part:
Expanding this gives us
Putting this together:
Now we can solve it more easily.
Rearranging:
Answer:
and
are the required solution.
Step-by-step explanation:
We have been give the graph of a function in which there is a downward parabola and a line.
Solution to the system of equation is intersection of two curves.
We can see that the parabola and line intersects at two points.
We ca see from the graph that there is 2 units scale in the coordinate plane. and
are the required solution.