Solve the system of equations.y=−13x+39y=x2−19x−1Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Q. Solve the system of equations.y=−13x+39y=x2−19x−1Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Set Equations Equal: We have the following system of equations:y=−13x+39y=x2−19x−1To find the solution, we need to set the two equations equal to each other because they both equal y.−13x+39=x2−19x−1
Rearrange to Standard Form: Rearrange the equation to get a standard form of a quadratic equation by moving all terms to one side.x2−19x−1+13x−39=0x2−6x−40=0
Factor Quadratic Equation: Factor the quadratic equation to find the values of x. We are looking for two numbers that multiply to −40 and add up to −6. These numbers are −10 and 4. (x−10)(x+4)=0
Solve for x: Solve for x by setting each factor equal to zero.x−10=0 or x+4=0This gives us two solutions for x:x=10 or x=−4
Find Corresponding y-Values: Find the corresponding y-values for each x-value by substituting back into one of the original equations. We can use y=−13x+39.For x=10:y=−13(10)+39y=−130+39y=−91For x=−4:y=−13(−4)+39y=52+39y=91
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: (10,−91)Second Coordinate: (−4,91)
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