Q. Solve the system of equations.y=−x+13x2+y2=109Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Substitute y into second equation: Substitute y from the first equation into the second equation.y=−x+13x2+y2=109x2+(−x+13)2=109
Expand and simplify: Expand and simplify the equation.x2+(−x+13)2=109x2+(x2−26x+169)=1092x2−26x+169=109
Move 109 to left side: Move 109 to the left side of the equation.2x2−26x+169−109=02x2−26x+60=0
Divide and simplify: Divide the equation by 2 to simplify.x2−13x+30=0
Factor the quadratic equation: Factor the quadratic equation.(x−10)(x−3)=0
Solve for x: Solve for x by setting each factor equal to zero.x−10=0 or x−3=0x=10 or x=3
Find corresponding y values: Find the corresponding y values for each x.For x=10: y=−10+13=3For x=3: y=−3+13=10
Write coordinates in exact form: Write the coordinates in exact form.First Coordinate: (10,3)Second Coordinate: (3,10)
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