Q. Solve the system of equations.y=−9x+17y=x2−6x+7Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Set Equations Equal: We have the following system of equations:y=−9x+17y=x2−6x+7To find the solution, we need to set the two equations equal to each other because they both equal y.−9x+17=x2−6x+7
Rearrange Equation: Rearrange the equation to get a standard form of a quadratic equation by moving all terms to one side.0=x2−6x+9x+7−170=x2+3x−10
Factor Quadratic: Factor the quadratic equation.We are looking for two numbers that multiply to −10 and add up to 3. These numbers are 5 and −2.0=(x+5)(x−2)
Solve for x: Solve for x by setting each factor equal to zero.(x+5)=0 or (x−2)=0x=−5 or x=2
Find y for x=−5: Find the corresponding y-values for each x-value by substituting back into one of the original equations. We can use y=−9x+17.For x=−5:y=−9(−5)+17y=45+17y=62
Find y for x=2: Find the y-value for x=2: y=−9(2)+17 y=−18+17 y=−1
Write Coordinates: Write the coordinates in exact form.The solutions to the system of equations are the points where the two graphs intersect, which are the x-values we found and their corresponding y-values.First Coordinate: (−5,62)Second Coordinate: (2,−1)
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