If two roots of the quadratic equation (b-c)x²+(c-a)x+(a−b)=0 are equal, then let us prove that, 2b=a+c.

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Let d be the domain and let ƒ be the possible function. determine if the relation is an example of a function. d = {x| x is a date, expressed in day/month/year} ƒ(x) = temperature in seattle washington on that date

If you can't read what do you think the x- and y-intercepts of y=(x-3)(4x+2) will be and why?

1. write a quadratic function, in standard form, that fits the set of points. solve it as a system of three equations (-4, 9), (0, -7), and (1, -1)