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svet-max [94.6K]
3 years ago
13

A system of two equations contains one quadratic equation and one linear equation. the quadratic system of the equation is y=x^2

+5x-9. the solutions of the system are (3,15) and (-1,-13). what is the linear equation in the system?
Help if you don't mind!
Mathematics
1 answer:
ruslelena [56]3 years ago
7 0
Suppose the line is y=mx+b
when x=3, y=15, so 15=3m+b
when x=-1, y=-13, so -13=-m+b
solve the system of these two equation, you get m=7, b=-6
so the linear equation is y=7x-6
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