Answer:
where is diagram..........???
It means different digits.
W=50 would count as one of the digits.
Now you have to figure out what “XYZ” is.
Ne este dat numărul total de elevi = 30.
Să presupunem că numărul de băieți este egal cu numărul de fete.
Dacă împărțim 30 cu 2, obținem 15.
Deci, numărul de băieți = 15 și numărul de fete = 15 dacă ambele sunt egale.
"Dar numărul de fete este mai mult de 2 băieți."
Astfel putem scădea 1 din 15 și adăugăm 1 din 15.
După adăugarea a 1 din 15, ajungem
15 + 1 = 16.
Și scăzând de la 1 la 15, ajungem acolo
15-1 = 14.
Deci, numărul de băieți este de 14 și numărul de fete este de 16
Answer:
D. It has a constant slope.
Step-by-step explanation:
We have to find the characteristic which states that the graph of a function must be linear.
The four characteristics given in the question are;
A. It passes through the origin
B. It crosses the x-axis more than once.
C. It crosses the y-axis exactly once
D. It has a constant slope.
If we consider the first characteristic that it passes through the origin
, then the graph of a function will not be linear because it will contain two variables.
If we consider the second characteristic that it crosses the x-axis more than once
, then the graph of a function will not be linear because it will then be a parabola or a curve function and will not have a linear function.
If we consider the third characteristic that it crosses the y-axis exactly once
, then the graph of a function will not be linear because it may cross the x-axis twice.
If we consider the fourth characteristic that it has a constant slope
, then the graph of a function will be linear because it will not change it's form and will have a constant slope linear function.
For this case we have the following equation:
That can be rewritten in the form 
Where:
- m is the slope of the line
So, we have:
Where:
is the slope
is the cut point
Carlota has the following points:
(-1, 3) and (2, 9)
To know if the line 
passes through these points, we must replace them in the equation and the equality must be fulfilled. So:
Point (-1, 3):
Substituting:
It's false, equality is not met. The point (-1, 3) does not go through the line.
The equation written by Carlota is erroneous, the procedure to follow is:
Given
and
, we find the slope:
We observe that the slope found by Carlota is the same. Let's see cut point "b". For this we substitute any of the points given in the equation:
Substituting (2,9) we have:
Thus, Carlota's error was at the cut-off point. The correct equation of the line that passes through the given points is 
Answer:
The correct equation of the line that passes through the given points is
Carlota's mistake was at the cutoff point
