Imaginary Numbers
-1
The graph of a quadratic is called...
parabola
x2 + 4x + 3
(x + 3)(x + 1)
Cubic Parent Function
x3
Rewrite as a rational exponent:
The square root of x to the fifth.
x5/2
(12i - 7) + (20 - 10i) - (3i - 11) = ?
24 - 1i
If the zeros of a graph happen at x = -1 and x = 7, what are the factors of the quadratic?
(x + 1)(x-7)
2x2 + 17x + 8
(2x + 1)(x + 8)
The absolute value parent function looks like this letter
V
The lowest point of a parabola is the vertex, also known as the ...
minimum
sqrt(-81) = ?
9i
The parent function of a quadratic is...
x2
81x2 - 64
(9x + 8)(9x - 8)
The degree of the polynomial:
3x13 - 2x10 + x - 10
13
Write the equation of a parabola shifted 2 right and down 7.
(x - 2)2 - 7
(4i + 10)(5i - 2) = ?
-40 + 42i
Find the discriminant. State the number and type of solutions. (All or nothing)
3x2 + 7x - 11
181; 2 real solutions
x3 + 8
(x + 2)(x2 + 2x + 4)
State the degree and describe the end behavior (same direction or opposite directions):
6x4 + 3x - 1
4; same direction
Find the inverse:
f(x) = 3x + 11
f-1(x) = (x -11)/3
Rationalize the denominator:
5/(2 - i)
or
2 + i
Find the discriminant. State the number and type of solutions. (All or nothing)
31x2 - 20x + 25
-2700; 2 complex solutions
Divide the following:
(x2 - x - 56) / (x + 7)
x - 8
State the degree and describe the end behavior (same direction or opposite directions):
4x2 - 11x5 + 5x - x3
5; opposite directions
Use the compound interest formula:
Start with $14.21; collect interest semiannually; rate of 3.2%; for 8 years.
$18.32