Answer:
use cymath it really helps with finding slopes
Step-by-step explanation:
Answer:
Procedure:
1) Form a system of 3 linear equations based on the two zeroes and a point.
2) Solve the resulting system by analytical methods.
3) Substitute all coefficients.
Step-by-step explanation:
A quadratic function is a polynomial of the form:
(1)
Where:
- Independent variable.
- Dependent variable.
,
,
- Coefficients.
A value of
is a zero of the quadratic function if and only if
. By Fundamental Theorem of Algebra, quadratic functions with real coefficients may have two real solutions. We know the following three points:
,
and 
Based on such information, we form the following system of linear equations:
(2)
(3)
(4)
There are several forms of solving the system of equations. We decide to solve for all coefficients by determinants:







And finally we obtain the equation of the quadratic function given two zeroes and a point.
Answer:
The opción b
Step-by-step explanation:
the profit is defined by

In this case
is the profit to sell 100 television and is calculated


Answer:
y = 2.5x + 5
Step-by-step explanation:
Slope intercept form is y = mx + b, where m is the gradient or slope and b is the y-intercept.
To find the gradient/slope (m), we need to do change in y ÷ change in x.
- Pick two co-ordinates on the line; (0, 5) and (-2, 0)
- Subtract the y co-ordinates; 5 - 0 = 5
- Subtract the x-co-ordinates; 0 - -2 = 2
- Finally, divide 5 by 2; 5 ÷ 2 = 5/2 or 2.5
Now we have y = 2.5x + b. The y-intercept is simply where the line crosses the y axis (it crosses at 0,5). This means the equation of the line is y = 2.5x + 5.
Hope this helps!
Answer:
hey i would help you but i cant because my school computer blocked the image
Step-by-step explanation:
if you could tell me text wise i might be able to help you out :)