Factoring
Factor this polynomial
x2+5x-6
What is the common difference of this arithmetic sequence?
5, 8, 11, 14
3
Which equation is NOT a function?
a. 3x2+4y2=12
b. y=2cosx
c. y=2x
d. y=x2-4x+3
a. 3x2+4y2=12
What is an equation of the line that passes through the point (4,−6) and has a slope of −3?
y = −3x + 6
What are the zeros of the function f(x)= x2-13x-30?
x = 15
x = -2
Factor completely
2x2+10x+12
2(x+3)(x+2)
In this arithmetic sequence, the first term is 4 and the third term is -2. What is the common difference?
-3
If the function f(x)=x2 has the domain {0, 1, 4, 9}, what is its range?
{0,1,16,81}
What is an equation of the line that passes through (−2,3) and (6,−1)?
y=1/2x+2
What is the sum of -3x2-7x+9 and -5x2+6x-4?
-8x2-x+5
Factor completely
x3-36x
x(x+6)(x-6)
A geometric sequence with a common ratio of -3 is...
a. -10, -7, -4, -1
b. 14, 11, 8, 5
c. -2, -6, -18, -54
d. 4, -12, 36, -108
d. 4, -12, 36, -108
What is the range of the equation y=(x-4)2+1?
y≥1
Which equation represents a line that has a slope of 3/4 and passes through the point (2,1)?
a. 3y = 4x − 5
b. 3y = 4x + 2
c. 4y = 3x − 2
d. 4y = 3x + 5
c. 4y = 3x − 2
Simplify: √18 / √54
√3/3
One of the factors of 4x2-9 is...
a. (x+3)
b. (2x+3)
c. (4x-3)
d. (x-3)
b. (2x+3)
Find the 6th term in the geometric sequence for which a1=-7 and r= -1/3
7/243
Which situation could be modeled by a linear function?
a. The value of a car depreciates by 7% annually.
b. A gym charges a $50 initial fee and then $30 monthly.
c. The number of bacteria in a lab doubles weekly.The amount of money in a bank account increases by 0.1 % monthly.
d.
b. A gym charges a $50 initial fee and then $30 monthly.
Determine if the ordered pair (–2, –4) is a solution of 5x-2y=–2.
Yes.
Solve by completing the square.
x2+4x-16=0
x=-2±2√5
Factor
16a4+8a2b2+b4
(4a2+b2)(4a2+b2)
In a geometric sequence of positive terms, the second term is 6 and the fourth term is 54. What is the value of the sequence's first term?
a1=2
If f(x)=(x2+x+3) and g(x)=(x2-8x+1), then the product of f(x) and g(x) is...
x4-7x3-4x2-23x+3
The graph of the equation 2x+6y=4 passes through point (x,2). What is the value of x?
x=-4
(2x3)(8x5) / 4x6
4x2