Algebra 2: CC 2015 > Chapter 2: Characteristics of Quadratic Functions > Section Exercises 2.2 > Exercise 44 3 of 8 answer
Find the minimum or maximum value of the function g(x) = 3x2 + 18.0 -- 5. Describe the domain and range of the function, and where the function is increasing
and decreasing
The minimum value is
The domain is
and the range is
The function is decreasing to
the
ofa
of x =
and increasing to the
:: -32
: 0
:: 3
:: 32
:: 30
:: > 0
:: 2-3
:: 2-3
:: y < 0
:: y < -5
::y> 0
.: y <-32
::y> -32
y> -5
:: right
:: left
44
:: all real numbers

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

the answer is 1030 it's very simple math.