\begin{aligned} y&=10+16x-x^2 \\ y&=3x+50 \end{aligned} If (x1,y1) and (x2,y2) are distinct solutions to the system of equations shown, what is the sum of the y1 and y2?
Q. \begin{aligned} y&=10+16x-x^2 \\ y&=3x+50 \end{aligned} If (x1,y1) and (x2,y2) are distinct solutions to the system of equations shown, what is the sum of the y1 and y2?
Set Equations Equal: To find the distinct solutions (x1,y1) and (x2,y2) to the system of equations, we need to set the two equations equal to each other and solve for x.\begin{aligned}10 + 16x - x^2 &= 3x + 50 \x^2 - 13x + 40 &= 0\end{aligned}
Factor Quadratic Equation: Now we factor the quadratic equation to find the values of x.\begin{aligned}(x - 5)(x - 8) &= 0\end{aligned}This gives us two solutions for x: x1=5 and x2=8.
Substitute x1 for y1: We substitute x1=5 into one of the original equations to find y1.\begin{aligned}
y_1 &= 3(5) + 50 \
y_1 &= 15 + 50 \
y_1 &= 65
\end{aligned}
Substitute x2 for y2: We substitute x2=8 into one of the original equations to find y2.\begin{aligned}y^2 &= 3(8) + 50 (\newline\)y^2 &= 24 + 50 (\newline\)y^2 &= 74\end{aligned}
Find Sum of y1 and y2: Now we find the sum of y1 and y2.\begin{aligned}
y_1 + y_2 &= 65 + 74 \
y_1 + y_2 &= 139
\end{aligned}
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