One application of solving a system of three linear equations is, somewhat ironically, in algebraically finding the equation of a parabola in standard form. Given a parabola that passes through the points (-4,5),(-1, –10), and (2,11):

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Chapter1: Systems Of Linear Equations
Section1.1: Introduction To Systems Of Linear Equations
Problem 72E: Find a system of two equations in three variables, x1, x2 and x3 that has the solution set given by...
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18. One application of solving a system of three linear equations is, somewhat ironically, in algebraically
finding the equation of a parabola in standard form. Given a parabola that passes through the points
(-4, 5), (-1, – 10), and (2,11):
(a) Substitute each point into the general form y = ax' + bx + c, to produce three equations with the three
unknowns a, b, and c. The first is done for you.
5= a(-4) + b(-4)+c=5=16a – 4b + c
(b) Solve this system for a, b, and c and state the equation of the parabola.
Transcribed Image Text:18. One application of solving a system of three linear equations is, somewhat ironically, in algebraically finding the equation of a parabola in standard form. Given a parabola that passes through the points (-4, 5), (-1, – 10), and (2,11): (a) Substitute each point into the general form y = ax' + bx + c, to produce three equations with the three unknowns a, b, and c. The first is done for you. 5= a(-4) + b(-4)+c=5=16a – 4b + c (b) Solve this system for a, b, and c and state the equation of the parabola.
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