Use the coordinate grid to determine the coordinates of point A:
1 answer:
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Answer:
The values of x and y to the given equations are x=5 and y=7
Step-by-step explanation:
Given equations are
To solve the given equations by elimination method :
Multiply the equation (1) into 2 we get
Multiply the equation (2) into 5 we get
Now subtracting the equations (3) and (4) we get
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Therefore x=5
Now substitute the value of x=5 in equation (1) we get
4(5)-5y=-15
20-5y=-15
-5y=-15-20
-5y=-35
Therefore y=7
The values are x=5 and y=7
In the question, the angles proves that this triangle is an isoceles triangle.
So we can set the two sides equal:
Add
to both sides of the equation: 
Divide both sides by 2:
We find that
. AC is also x, so, it is 6 too.
So we can set the two sides equal:
Add
Divide both sides by 2:
We find that