Evaluate whose Function?
f(x) = -2x + 7 – x2 at x = -2.
f(-2) = 7
(7x - 3)(2x - 5) is equivalent to :
14x2- 41x + 15
Factor the difference of squares.
4x2 – 9y6
(2x+3y3)(2x-3y3)
Which is the correct form of the quadratic
formula?
x=-b+/- the square root of b-4ac over 2a
Identify the index and radicand.
b(x) = –4√2x
index = 8; radicand = 2x
What is the value of f(5) for the function
f(x) = 9 – x2 in function notation?
f(5)=-16
The expression (4z + 3)(z - 2) is equivalent to:
4z2- 5z - 6
Factor the Difference of squares
9y2 – 100z2
(3y+10z)(3y-10z)
Identify a, b, and c
4m2 + 6m + 1 = 0
4m2 + 6m + 1 = 0
For f(x) = √2x + 1 – 3, find f(4)
f(4) = √2(4) + 1 – 3 = √9 – 3 = 3 – 3 = 0
If the domain of function, f(x) = -x2 + 1, is
{-1, 3, 4}, what is the range?
{0,-8,-15}
How long has Saga been in DC?
This is the first year
Is 4x2 – y3 a difference of squares? Explain.
No, y3 is not a perfect square
Solve using the quadratic formula.
b2- 4b + 3 = 0
x = 1, 3
Find the root(s) of f(x) = 1/3√x + 5 – 1
x = 4
Evaluate g(x) = 4 – 5x for x = m + 1.
-5m – 1
What is the simplified form of the product
of the two polynomials (x – 1)(x2 + x + 1)?
x3 – 1
Factor fully
2x4r – 72y4r
2r(x2 + 6y2)(x2 – 6y2)
Solve each quadratic using the quadratic formula.
2n2 + 7 = -4n + 5
n = -1
Find the domain
f(x) = √x2 – 4
x ≥ 2 or x ≤ -2
Find f(3 + m) for f(x) = x2 + x.
m2 + 7m + 12
Expand (a + b – c)(a + b + c) by using the
distributive property.
a2+2ab+b2-c2
Factor the expression (a – 3b)2 – 225.
(a – 3b + 15)(a – 3b – 15)
What is the product of the roots of the
equation 5x2- 8x - 7 = 0 ?
-7/5
Create a radical function where the domain is
x ≥ 5, and the range is y ≤ 3.
Example of possible solution
f(x) = √x – 5+ 3