Chapters 1 & 2
Is this a linear function:
y=x2 + 3x + 2
No, exponent
x2 - 12x + 32
x = 4
x = 8
What is the index of the cubed root of 8.
3
92x+5=273x
x = 2
simplify:
(x2 - 25)/(x+5)
x-5
What is the slope of this equation:
y=-5x - 4
m=-5
Add these polynomials
(4x2-3x) + (-2x2-4x + 6)
2x2-7x+6
What is the radicand of the square root of 25
25
Is this exponential growth or decay:
y=5000(0.25)x
Decay (0.25) less than 1
Divide:
(24a2b3)/(4) / (3ab)/2)
4ab2
What are the x and y intercepts of this table
X Y
0 100
1 75
2 50
3 25
4 0
x - int (4,0)
y - int (0,100)
Subtract these polynomials
(8y2+4x-3) - (-2y2 + 3x + 9)
10y2+x-12
square root of 50 + 2 times the square root of 8?
9 times the square root of 2
Write as a logarithmic function
53=125
log5(125) = 3
What quadrant do you end up in 250 degree rotation
Quadrant 3
Solve the following equation for x:
4x - 5 = 3(x + 12)
x = 31
Solve this quadratic equation for its zeros:
7x2+26x+15 = 0
x = -3
x = -5/7
Solve the squared root equation:
square root of 2x + 4 = 16
x = 0
x = -4
Write in expanded form:
log5(4xy)
log5(4) + log5(x) + log5(y)
If the points (5,12) lie on a coordinate plane solve for r.
square root of 52 + 122 = r
r = 13
What is the domain and range of this function:
F(x) = 4x + 2
D: (- infinity, + infinity)
R: (- infinity, + infinity)
Solve by grouping
3x2 + 9x - 4x + 12 = 0
x = -3
x = 3/4
f(x) = 4x - 2
g(x) = 3x2 - 4
(f of g)
12x2 - 18
Convert to logarithmic form:
5x+10 = 25
log5(15) = x
log(15)/log(5) = 1.68
If triangle ABC is a right triangle and leg AB is 10 and leg BC is 5, what is the length of the hypotenuse AC?
Write in simplest radical form
5 square root of 5