Answer:
A quadratic equation is some thing like
(x+2)^2
or
(x+2)(x+5)
In order to solve them, the most basic method is the FOIL method
F-First
O-Outside
I-Inner
L-Last
So for example
(x+2)^2
Which is basically
(x+2)(x+2)
So the first is the 2 Xs
(x+2)(x+2)
x*x=x^2
The outer is the x and the 2,
(x+2)(x+2)
2*x=2x
Now the Inner which is the 2 and the x
(x+2)(x+2)
2*x=2x
And finally the last which is the 2 and the second 2
(x+2)(x+2)
2*2=4
Now add them all up
X^2+2x+2x+4
Combine like terms
x^2+4x+4
There you have it
Do the same with every other quadratic equation
Answer:multiply i learnt that in mg class
Step-by-step explanation:
im smart and mg
Answer:
3
Step-by-step explanation: If they are parallel, the lines will always run the same distance apart and never intersect. If the slopes are different, they will intersect at some point
Answer:
C. 1/7
Because 1 ball is purple out of 7 other ones
Answer: y-value of the vertex of a ∪-shaped (positive) parabola
<u>Step-by-step explanation:</u>
For a quadratic: it is the y-value of the vertex of a positive parabola.
<em>If it is a negative parabola ( ∩-shaped), it is the maximum.</em>
For a cubic: it is the y-value of all of the vertices of the ∪-shaped sections of the graph. These are typically referred to as the "relative minima" when given an interval.
