Answer:
Hope this helps you.look it once.
Solve graphically the system of linear equations: x-y=1 x+3y=9
2 answers:
X - y = 1
-x - 3y = -9 = -4y = -8 = y = 2
Then use the easiest equation from before.
Use 2 for y.
x -1(2) = 1
x - 2 = 1 = x = 3
Answer: (3, 2) Hope this helps :)
-x - 3y = -9 = -4y = -8 = y = 2
Then use the easiest equation from before.
Use 2 for y.
x -1(2) = 1
x - 2 = 1 = x = 3
Answer: (3, 2) Hope this helps :)
To solve an equation graphically, you need to plot the graph on graph paper and then find the points of intersection (points where both lines meet), which is your answer.
You can't solve it using simultaneous equations.
To plot the graph, you need to make a table of values for x, substitute the random values of x into one equation, find the points that the line touches, and draw the line from the table.
Once you are done drawing both lines, just identify the point at which both lines meet and that's your answer.
NOTE: IF ALL THIS IS TOO CONFUSING, GO TO THE WEBSITE CALLED "DESMOS" AND TYPE IN THE EQUATIONS. IT PLOTS THE GRAPH FOR YOU. ALL YOU NEED TO DO IS FIND THE POINT WHERE BOTH LINES MEET FROM THERE
You can't solve it using simultaneous equations.
To plot the graph, you need to make a table of values for x, substitute the random values of x into one equation, find the points that the line touches, and draw the line from the table.
Once you are done drawing both lines, just identify the point at which both lines meet and that's your answer.
NOTE: IF ALL THIS IS TOO CONFUSING, GO TO THE WEBSITE CALLED "DESMOS" AND TYPE IN THE EQUATIONS. IT PLOTS THE GRAPH FOR YOU. ALL YOU NEED TO DO IS FIND THE POINT WHERE BOTH LINES MEET FROM THERE
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Answer: A. . . . . . . . . .
I can’t do that check mark thing so I’ll use ! instead.
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!12 2!8
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2!3+4!2-12!2
2!3+(4!2-12!2)
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Answer:
D(-2, 5).
Step-by-step explanation:
We are given that M is the midpoint of CD and that C = (10, -5) and M = (4, 0).
And we want to determine the coordinates of D.
Recall that the midpoint is given by:
Let C(10, -5) be (<em>x</em>₁<em>, y</em>₁) and Point D be (<em>x</em>₂<em>, y</em>₂). The midpoint M is (4, 0). Hence:
This yields two equations:
Solve for each:
And:
In conclusion, Point<em> </em>D = (-2, 5).