HELP I NEVER LEARND WITH BLOcKS IN ALGEBRA
2 answers:
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1) A quadratic will have no real roots when its discriminant is negative
Dividing by 4,
We have a positive coefficient on k^2 so this parabola is a CUP (concave up positive) so has a minimum at the vertex. If the vertex y value is less than zero, the inequality will be true in the range between the zeros.
That's true for
2) We look for the meet of the line and the parabola:
For two intersections we need a positive discriminant:
That's means two negative or two positive, so
or
Answer:
Step-by-step explanation:
Split it up like this to make it easier to work with:
Since the only thing in the denominator of those fractions is a 3, we can only divide the 27 by 3, not the x or y terms. Same thing with the second fraction. 27 divided by 3 is 9 and 15 divided by 3 is 5, so
is the solution. It is not completely simplified, but that isn't what you asked for, so this should suffice as the answer.