Linear
What is the slope and y intercept of the equation: y = 9x - 2
Slope: 9
y - int: -2
What makes something quadratic?
Highest exponent is 2
What does -|-10| equal?
-10
Simplify:
-3x2 - 7x + 9 + (-5x2 + 6x -4)
-8x2 - x + 5
Solutions to systems are...
Points
6x + 1 = x - 5
x = -6/5
Express in standard form:
-8x + 2 - x2
-x2 - 8x + 2
How many solutions are there to the equation 4|x-1| + 9 = 2.
Two
Simplify:
3(x2 + 2x - 3) - 4(4x2 - 7x +5)
-13x2 + 34x - 29
Domain refers to __________ and Range refers to __________
x-values/inputs & y-values/outputs
-2(1-4x)=3x+8
x = 2
Solve for x:
x2 = 49
x = 7 & x = -7
Solve for x:
|3x + 2| = 5
x = -7/3 & x = 1
What is the product of (2x+7) and (x-3)
2x2 + x - 21
6 radical(7)
3(x+2) - 2(x+1) = 8
x = 4
x2 - 7x - 30 = 0
x = -3 & x = 10
Solve for x:
|x - 6| + 4 = 10
x = 0 & x = 12
Factor completely:
3x3 - 48x
3x(x+4)(x-4)
What does the correlation coefficient "r" indicate about a regression line.
How strongly related the dataset is, and if there is a positive or negative relationship.
3(x+1)-5x = 12-6(6x - 7)
x = 4
Solve for x:
2x2 +10x + 12 = 0
x = -3 & x = -2
Solve for x:
10|6x - 4| = 80
x = -2/3 & x = 2
Write a 5 term polynomial with a degree of 7, and has a constant term of 4.
Check answers for accuracy
Given the function f(x) = x2 + 6x - 1, evaluate f(-2)
f(-2) = -9