<h3>
Answer:</h3>
B. { (3, –2), (3, –4), (4, –1), (4, –3) }
<h3>
Step-by-step explanation:</h3>
Functions are a set of points that show how dependent variables change through independent variables.
Defining a Function
In functions, each x-value is assigned to exactly one y-value. This means that x-values do not repeat. So, if there is one x-value more than once in a set, then it cannot be a function.
For example, set B has the x-value 3 and 4 repeated twice. Thus, it does not represent a function.
Graph of a Function
Functions can also be defined through a graph. Just like with coordinate points, x-values do not repeat on the graph. You can use the vertical line test to see if a graph is a function. If you can draw a vertical line at every point on a graph without it ever intersecting with the graph more than once, then it is a function.
The answer is A which is 125
Answer:
During the first year he had an annual interest of 12%, and in the second year of 25%
Step-by-step explanation:
To calculate the interest of the first year:
(Initial capital of the first year / final capital of the first year) - 1 = interest of the first year
(300/336) - 1 = 0.12 = 12%
To calculate the interest of the second year:
(Initial capital of the secondyear / final capital of the second year) - 1 = interest of the second year
(336/420) - 1 = 0.25 = 25%
Answer:
A's received by Dina is 35.
Step-by-step explanation:
Given
number of A’s received by Pete, Chris, and Dina on their report cards were in a ratio of 4:2:5.
Let the
A's received by Pete = 4x
A's received by Chris = 2x
A's received by Dina = 5x
This, is done so that ratio of 4:2:5 remains intact.
Now, given Pete got 14 more A’s than Chris got
Thus, writing it mathematically
A's got by Pete = A's got be Chris + 14
we will be using A's got Pete and Chris in term of x as defined above
4x = 2x+ 14
=> 4x - 2x = 14
=> 2x = 14
=> x = 14/2 = 7
A's received by Dina = 5x = 5*7 = 35( Answer).
