Functions
Find the domain / range of...
f(x) = -x^2 + 6
D: (-∞ , ∞ )
R: (-∞ , 6]
Rewrite log 81 3 = 1/4 as an exponent
811/4 = 3
Is (3,-9) a solution to...
y = 3x - 18
2x + 2y = -12
YES
Find the 50th term for the arithmetic sequence that has a first term 8 and common difference of 6
302
Write the sum of the first 3 terms
i(i + 1)
20
What would be the equation to...
move y=f(x) 6 units down and 2 units to the left
y = f(x + 2) - 6
Solve Log 5 1 = ?
0
Solve by substitution method...
x - 2y = -2
y = -3x + 22
(6 , 4)
Find the 10th term for the geometric sequence that has the first term 4 and common ratio -2
-2048
Write the sum of the first 6 terms...
5i
105
f(x) = x^2 + 1
g(x) = 2x - 3
Find GoF(x)
2x^2 - 1
3rd root of 125 = 5
Rewrite as a logarithm
log 125 5 = 1/3
Solve by addition method...
14x - 3y = -50
7x + 7y = -42
(-4 , -2)
Find the 10th term of the following arithmetic sequence
a4 = 21
a7 =42
63
Find the sum of the first 4 terms of the following geometric sequence...
4(1.05)i-1
17.2405
What would be the equation to...stretch y=f(x) vertically by a factor of 2 and shift down 3
y = 2f(x) - 3
Is -4 a solution of...
log 2 16 = 2 log 2 x
NO
Solve the system
4x - 8y + 3z = 18
x + 4y - z = 0
8x - y - z = 9
(2,1,6)
Find a2 and a3...
128 , a2 , a3 , 250
a2 = 160
a3 = 200
Find the sum of the infinite geometric sequence
11(3/11)i
33/8
Find the domain / range of...
f(x) = sqrt(x+5)
D: [-5 , ∞)
R: [0 , ∞)
Write as a natural log
log 5 11
(ln 11) / (ln 5)
Solve by using Cramer's Rule
3x + 7y = 26
4x - 2y = -22
(-3,5)
Write the second term
an = 4an-1 + 5
a1 = 4
21
Find the sum of the first 20 terms of the following arithmetic sequence...
-9i + 5
-1790