Question down below about linear equations and grapghing.
1 answer:
The system of equations is -x + y = 4 and -2x + y = 0
<h3>How to create the system of linear equations?</h3>To do this, we make use of the following ordered pairs
(4, 8)
The above point represents April 2008.
Let the system of equations be
mx + ny = 4
2mx + ny = 0
Substitute (4, 8) for x and y in the above equations.
4m + 8n = 4
8m + 8n = 0
Subtract both equations
4m - 8m = 4
This gives
-4m = 4
Divide by 4
m = -1
Substitute m = -1 in 8m + 8n = 0
-8 + 8n = 0
This gives
8n = 8
Divide by 8
n = 1
So, the system of equations is -x + y = 4 and -2x + y = 0
<h3>The graph of the system of equations</h3>The system of equations is -x + y = 4 and -2x + y = 0
See attachment for the graph of the system of equation
<h3>Prove that the solution is (4, 8)</h3>The above is represented in the (a) part of this solution
Verify that the solution is (4, 8)
We have:
-x + y = 4 and -2x + y = 0
Substitute (4, 8) for x and y in the above equations.
-4 + 8 = 4 --- true
-2*4 + 8 = 0 --- true
Both equations are true
Hence, the system of equations have been verified
Read more about system of equations at:
#SPJ1
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Answer:
The family might share maximum of 700 mins each month.
Step-by-step explanation:
Given:
Total number of minutes used by each member = 175
Number of members in family = 4
We need to find the number of minute family will share each month.
Solution:
Let the number of minute family will share each month be 'x'.
So we know that;
Total number of minute family will share each month should be less than or equal to Total number of minutes used by each member multiplied by Number of members in family
framing in equation form we get;
Hence The family might share maximum of 700 mins each month.