Q. Solve the system of equations.y=−17x−36y=x2+x+9Write 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 to solve for x. This gives us the equation −17x−36=x2+x+9.
Rearrange and simplify equation: Rearrange the equation to set it to zero: x2+x+9+17x+36=0, which simplifies to x2+18x+45=0.
Factor quadratic equation: Factor the quadratic equation: (x+3)(x+15)=0.
Solve for x: Solve for x by setting each factor equal to zero: x+3=0 or x+15=0.
Find x solutions: Find the two solutions for x: x=−3 or x=−15.
Substitute x=−3 into first equation: Substitute x=−3 into the first equation y=−17x−36 to find the corresponding y value: y=−17(−3)−36.
Calculate y for x=−3: Calculate the y value for x=−3: y=51−36, which simplifies to y=15.
Substitute x=−15 into first equation: Substitute x=−15 into the first equation y=−17x−36 to find the corresponding y value: y=−17(−15)−36.
Calculate y for x=−15: Calculate the y value for x=−15: y=255−36, which simplifies to y=219.
Write solutions as coordinate points: Write the solutions as coordinate points. The coordinate points are (−3,15) and (−15,219).
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