First you need to c<span>onvert the given percentage into fraction by dividing it by 100 and removing percentage symbol (%).
Then you reduce the fraction into simplest forms.
Finally you write the </span> fraction turned simplest form to a ratio by writing
the numerator first,then the denominator.
Example:50%=


.
=1:2
Answer:
The vertex (h,k) is (-4,-7).
Step-by-step explanation:
I assume you are looking for the vertex
.
The vertex form of a quadratic is
where the vertex is (h,k) and a tells us if the parabola is open down (if a<0) or up (if a>0). a also tells us if it is stretched or compressed.
Anyways if you compare
to
, you should see that
.
So the vertex (h,k) is (-4,-7).
Answer:
Select all the lines with slope
.
Step-by-step explanation:
Use the slopes to help you answer this kind of questions.
The slope of the line going through: (1, - 2) and (3,4) is given by:

We plug in the coordinates to get:

All lines that are perpendicular to this line has slope
.
The common factor of 5x2 is y5x