!!PLEASE HELP MY PARENTS ARE MAD AT ME FOR MY GRADES!! f( x) = -3 x – 5, calculate f(-7)
2 answers:
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Step-by-step explanation:
We have,
If a quadratic equation with real coefficients has a discriminant of -36.
The general form of quadratic equation is :
The discriminant of this equation is :
If D=0, it will have 1 real roots
If D>0, it will have 2 real roots
If D<0, it will have no real roots
We have,
D = -36 < 0, so, the quadratic equation will have no real roots.