Functions
Determine if the relation is a function:
{(2, 4), (3, 7), (-8, 1), (9, 4), (-3, 7)}
Yes, it is a function
Slope of a horizontal line
What is zero?
The equation of a line with a slope of 1/2 and a y-intercept of 7
What is y=1/2 x + 7?
The domain of the function:
{(2, -3), (-9, 5), (8, 7)}
What is {-9, 2, 8}?
The y-intercept in the equation: y = 3x + 4
What is (0, 4)? (Can also be stated as just 4)
Determine if the relation is a function:
{(2, 0), (-3, 9), (5, 7), (2, -9), (8, 3)}
It is not a function
Slope of a vertical line
What is undefined?
The equation of a line with m=3 and b = -12
What is y = 3x-12?
The range of the function:
{(2, -3), (-9, 5), (8, 7)}
What is {-3, 5, 7}?
The y-intercept in the equation: y=2x-8
What is (0,-8) ? (Can also be stated as just -8)
Calculate F(3) when f(x) = 2x + 3
What is 9?
The slope between (2, 4) and (5, 7)
What is m=1?
The equation of a line with m = 3 and contains point (2,-5)
What is y+5=3(x-2)?
Describe the transformation:
Original: x2
Transformed: (x-3)2
What is "move right 3"?
The y-intercept in the equation: 3x+2y=12
What is (0,6)?
Calculate f(-4) when f(x) = -5 - 8x
What is 27?
The slope between (-5, 4) and (3, 6)
What is m=1/4?
The equation of a line with m=-2 and contains (-4, -8).
What is y+8=-2(x+4)?
Provide at least two other names for x-values
Options:
domain, input, independent variable
The x-intercept in the equation: 5x-8y=40
What is (8,0)
Calculate g(-2) when g(x) = x2 + 3x -1
What is -3?
Slope between (-8, 7) and (-1, -3)
What is m = - 10/7?
The equation of a line that contains (0,4) and (7,8)
All possible options:
y-4=4/7(x-0)
y-8=4/7(x-7)
y=4/7x+4
Describe the double transformation:
original: 5x
transformation: 5(x+1) + 3
left 1 and up 3
The x and y intercepts in the equation: 2x - 5y = 10
X-intercept is (5,0)
y-intercept is (0,-2)