Area of ABC : AB*AC/2
the maximum of the parabola is reached at x=-4/(2*(-1))=2 hence A is at (2,0) and B is at (2,(-2)^2+4*2+C)=(2,12+C)
C is the second root (x-intersect), which we can find :
determinant1 : D=16-4*(-1)*C=4(4+C) thus the second root is at x=

Hence the area of the triangle is

hence

.
We remark that

Hence 4+C=16 thus
C=12
Answer:
Domain: [-20, 20]
Range: [-30, 5]
Step-by-step explanation:
The domain is the set of x values and the range is the set of y values.
Answer:
I think that the probability is 5/4
1/3^5
When multiplying exponents you just add them. X^a x X^b = X^a+b
If you have a negative exponent, you flip it to be the denominator (if originally numerator) or numerator (if originally denominator.
So, 3^-5 = 1/3^5