Q. y=10+16x−x2y=3x+50If (x1,y1) and (x2,y2) are distinct solutions to the system of equations shown, what is the sum of the y1 and y2 ?
Write Equations: Write down the system of equations.We have the following system of equations:y=10+16x−x2y=3x+50
Set Equal: Set the two equations equal to each other to find the x-values where the y-values are the same (the intersection points).10+16x−x2=3x+50
Rearrange & Solve: Rearrange the equation to set it to zero and solve for x.x2−16x+3x−10+50=0x2−13x+40=0
Factor Quadratic: Factor the quadratic equation to find the values of x.(x−5)(x−8)=0
Solve for x: Solve for the x-values x1 and x2.x−5=0 or x−8=0x1=5, x2=8
Substitute & Find y1: Substitute x1 and x2 into either of the original equations to find y1 and y2. We can use the second equation y=3x+50 for simplicity.For x1=5:y1=3(5)+50y1=15+50y1=65
Substitute & Find y2: Substitute x2 into the same equation to find y2.For x2=8:y2=3(8)+50y2=24+50y2=74
Find Sum: Add y1 and y2 to find the sum.Sum = y1+y2Sum = 65+74Sum = 139
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