a) The domain of a function refers to the set of values of x that satisfy the function. On the graph, it is between the minimum value of x on the left and the maximum value of x on the right. Since the line continues to the left and right, it tends towards infinity on both sides. Hence,
Domain = (- infinity, infinity)
b) The range of a function refers to the set of values of y that satisfy the function. On the graph, it is between the minimum value of at the bottom and the maximum value of y at the top. The maximimum value of y is - 1 and the minimum is negative infinity. Hence,
Range = (- infinity, - 1}
c) The x intercept is the value of x when y is zero. It occurs at the point where the line cuts the x axis. Since the line doesn't cut the x axis, there is no x intercept.
d) The y intercept is the value of y when x is zero. It occurs at the point where the line cuts the y axis. It cuts the y axis at x = - 4
Thus, y intercept = - 4
e) the function value, f(- 4) is the value of y at x = - 4. From the graph,
f(- 4) = - 2
the function value, f(0) is the value of y at x = 0. From the graph,
f(0) = - 4
0.5- (-0.75) = 1.25
a negative minus a negative equals a positive so its really just .5+.75
Answer:
<u>A = 2 , B = 10 and C = 18</u>
Step-by-step explanation:
Let the the missing numbers in the boxes are: A , B and C.
Given:
Time : Distance
A : 3
6 : 9
B : 15
12 : C
From the second raw, we can deduce that:
When the time = 6, the distance = 9
We will use the ratio and proportional to find A , B and C
So,
A/6 = 3/9 ⇒ A = 6 * 3/9 = 2
6/B = 9/15 ⇒ B = 6*15/9 = 10
6/12 = 9/C ⇒ C = 9*12/6 = 18
<u>So, A = 2 , B = 10 and C = 18</u>
Answer:
x = 5
y = 8.66
Step-by-step explanation:
I hope this helps!!
Answer:
16
Step-by-step explanation:
If the store sells 2 printers for every 5 computers
40/5 is 8. this means there are 8 sets of 5 computers
8x2 is 16 since for every 5computers, 2 printers are sold