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:
the scores on her last test is x (x > 0)
because on her last tests she scored 4 points lower than she did on her fifth test
=> the scores in the 5th test is x + 4
because Angela’s average for six math tests is 87, we have:
=> on her last test, she had 85
=> on her 5th test, she had 85 + 4 = 89
Answer:
Convert 7 1/8 to an improper fraction.
Simplify 7 * 8 to 56
-56 + 1/8 - (-9 1/2)
Simplify 56 + 1 to 57
-57/8 - (-9 1/2)
Convert 9 1/2 to an improper fraction.
-57/8 - (-9 * 2 + 1/2)
Simplify 9 * 2 to 18
-57/8 - (-18 + 1/2)
Simplify 18 + 1 to 19
-57/8 - (-19/2)
Simplify brackets
-57/8 + 19/2
Find the LCD
LCD = 8
Make the denominators the same as the LCD
-57/8 + 19 * 4/2*4
Simplify. Denominators are now the same
-57/8 + 76/8
Join the denominators
-57 + 76/8
Simplify
19/8
Convert to a mixed fraction.
2 3/8
Your answer is D.
Step-by-step explanation:
Answer:
To plot an inequality, such as x>3, on a number line, first draw a circle over the number (e.g., 3). Then if the sign includes equal to (≥ or ≤), fill in the circle. If the sign does not include equal to (> or <), leave the circle unfilled in.
If the inequality 7 ≥ y were graphed on the number line, would the arrow extend indefinitely to the left
A. left