Solve the system of equations.y=−28x−6y=x2−32x−38Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Q. Solve the system of equations.y=−28x−6y=x2−32x−38Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Set Equations Equal: Set the two equations equal to each other since they both equal y.−28x−6=x2−32x−38
Move Terms to One Side: Move all terms to one side to set the equation to zero.x2−32x+28x−38+6=0x2−4x−32=0
Factor Quadratic Equation: Factor the quadratic equation.x2−4x−32=(x−8)(x+4)
Solve for x: Set each factor equal to zero and solve for x.(x−8)=0 or (x+4)=0x=8 or x=−4
Substitute x to Find y: Substitute x back into one of the original equations to find y. For x=8: y=−28(8)−6 which is y=−224−6 so y=−230. For x=−4: y=−28(−4)−6 which is y0 so y1.
Write Coordinates: Write the coordinates in exact form.First Coordinate: (8,−230)Second Coordinate: (−4,106)
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