Find the area of the rectangle that makes the master bedroom , bath and closet:
16 x 17 = 272 sq.ft
Subtract the area of the bathroom and hallway:
Bathroom= 10 x 5 = 50 sq. Ft.
Hallway: 7 x 4 = 28 sq.ft.
= 50 + 28 = 78 sq ft.
Area of bedroom and closet = 272 - 78 = 194 sq. Ft.
Now multiply area by price of carpet:
194 x 1.34 = $259.96
The x coordinate of the vertex will be the average of the two zeros, here -3 and 5, so x=(-3+5)/2 = 1, f(1)=(1+3)(1-5) = -16.
Answer: (1, -16)
Let's do it some other ways. How about completing the square to turn f in to vertex form?
f(x) = (x+3)(x-5) = x² - 2x - 15 = (x² - 2x + 1) - 1 - 15 = (x-1)² - 16
and now we can read off (1, -16) as the vertex.
The other method is the vertex is x= - b/2a = - (-2)/2(1) = 1.
Three methods, same answer. Good.
I think it would be on a 100 point exam
I believe the answer is b
Inverse is the opposite.
A negative value is an inverse of the same positive value and a positive value is an inverse of the same negative value.
Examples:
-2 is the inverse of 2
5 is the inverse of -5
The answer is:
f(x) = x, g(x) = -x
f(x) = -8x, g(x) = 8x