Answer:
The domain of the function is -4 ≤ x ≤ 9 ⇒ D
Step-by-step explanation:
- <em>The domain of any relationship is the values of the input</em>
- <em>The domain of the function f(x) = y is the values of x which make the function defined</em>
In the given figure
∵ There are 5 intervals between 0, 10 and 0, -10 on the x-axis
∴ Each square = 2
∵ There are 5 intervals between 0, 10 and 0, -10 on the y-axis
∴ Each square = 2
→ Find the coordinates of the starting and the ending point of the graph
∵ The starting point located 2 squares left and 2 squares down
∴ The starting point of the graph of the function is (-4, -4)
∵ The ending point located 4.5 squares right and 4 squares up
∴ The ending point of the graph of the function is (9, 8)
→ That means the x-coordinates of all points on the graph is from -4 to 9
∴ All values of x-coordinates on the function are located on -4 ≤ x ≤ 9
∵ The domain of the function is the values of x
∴ The domain of the function is -4 ≤ x ≤ 9
Answer:
Step-by-step explanation:
It’s probably too late but
Point M is now at (7,1)
Answer:
T = $19.50 + $0.25(m - 200)
Step-by-step explanation:
Using the information provided we can create the following equation. This equation subtracts 200 from the total number of minutes and multiplies this by the cost per minute. Then it adds the fixed cost for the initial 200 minutes to get the total of the bill (T).
T = $19.50 + $0.25(m - 200)
Now that we have the equation we can plug-in you total for last month's bill and solve for m to calculate how many minutes you used last month.
$29.50 = $19.50 + $0.25(m - 200) ... distribute 0.25
$29.50 = $19.50 + $0.25m - 50 ... combine like terms
$29.50 = $0.25m - $30.5 ... add 30.5 on both sides
$60 = $0.25m ... divide both sides by 0.25
240 = m
Finally, we can see that you used a total of 240 minutes last month.