Answer:
0.5
Step-by-step explanation:
Option D: 40+20w is the correct answer
Step-by-step explanation:
We have to convert the given statement in the problem to find the correct choice
Let w be the number of weeks
As Joe already has $40, it will be constant that will not change
And the money he saves in w weeks by saving 20 dollars per week will be:
20w
Combining the both terms we get the total cost as:
Hence,
Option D: 40+20w is the correct answer
Keywords: Functions, variables
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The slope of the line is 3/2
Answer:
A: yes because the sample is fairly small and is collected in a convenient manner
The minimum value of a function is the place where the graph has a vertex at its lowest point.
There are two methods for determining the minimum value of a quadratic equation. Each of them can be useful in determining the minimum.
(1) By plotting graph
We can find the minimum value visually by graphing the equation and finding the minimum point on the graph. The y-value of the vertex of the graph will be the minimum.
(2) By solving equation
The second way to find the minimum value comes when we have the equation y = ax² + bx + c.
If our equation is in the form y = ax^2 + bx + c, you can find the minimum by using the equation min = c - b²/4a.
The first step is to determine whether your equation gives a maximum or minimum. This can be done by looking at the x² term.
If this term is positive, the vertex point will be a minimum; if it is negative, the vertex will be a maximum.
After determining that we actually will have a minimum point, use the equation to find it.