Answer:
Step-by-step explanation:
The axis of symmetry can be calculated using the formula:
First we must determine a and b from the quadratic: 
. This is in standard form, with the highest power first in descending order.
Standard form is also: 
If we compare this to the quadratic given, we can conclude that:
Substitute the values for a and b into the formula.
Multiply in the denominator.
Divide.
This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.
Answer: y+9=-2(x-9)
Step-by-step explanation:
The point-slope equation is 
. All we have to do is fill in all the values except for y and x.
To find m, you use 
. Since we are given 2 points, we cna plug them in.
. Now that we have our slope m, we can fill in the point slope equation.
Answer:
(x,y) to (2x,2y) and (x,y) to (x+2,y+2)
Step-by-step explanation:
Brainliest pls :)
Answer:
Its APR, because it's 1.32% less than its effective interest rate.
Step-by-step explanation:
APEX
The area of the parallelogram= length x width= 20 x 16=320 sq. in.
the area of the top triangle = 1/2 x bh=1/2 (20)(8)=80 sq. in.
together the areas total: 320+80= 400 sq. in.
