Domain and Range
Which variables do we use for Domain and Range?
What is: X for Domain, Y for Range
Put in slope-intercept form.
3x + 2y = 20
What is: y = -3/2x + 10
Define the x and y intercepts.
What is:
The x-intercept is where y is set equal to 0.
The y-intercept is where x is set equal to 0.
What test is used to determine if a graph is a function?
What is: the vertical line test.
What is Ms. Leach's favorite soda?
What is: Dr. Pepper
What is the domain and range?
What is:
Domain: -2 < x < 3
Range: -2 < y < 3
What is the slope and y-intercept of: y = 2x + 6?
What is:
Slope = 2
Y-intercept = (0, 6)
What is the x-intercept of: 2x + 4y = 20
What is: (10, 0)
f(x) = 20 - 3/4x
find f(4)
What is: 17
What is Ms. Leach's favorite holiday?
What is: Christmas
What is the domain and range?
What is:
Domain: x <= 3
Range: All real #s
Graph this line.
y = 2x + 4
Show me!
I will check
What is the y-intercept of: 6x + 7y = 12
What is: (2, 0)
Is this a function? Explain.
What is: Yes, there is one output for each input.
What is Ms. Leach's favorite season?
What is: Summer
What is the input value that corresponds with the output value of 2?
What is: -2
Graph this line.
y = 1/4x - 7
Show me!
I will check.
What are the x and y intercepts of 5x + 4y = 40?
What is:
X-intercept = (8, 0)
Y-intercept = (0, 10)
Is this a function? Explain
What is: No, it does not pass the vertical line test.
What is Ms. Leach's favorite subject, other than math?
What is: Science
What is the output value that corresponds with the input value of 1.75?
What is: 25 feet.
Graph this line.
3x + y = -1
Show me!
I will check
What are the x and y intercepts of: y = 2x + 7
What is:
X-intercept: (-7/2, 0)
Y-intercept: (0, 7)
h(x) = x2 + 4
If h(x) = 13, what is x?
What is: x = 3.
Where did Ms. Leach go to college?
What is: Northwestern State University