Domain and Range
What set of values does the Domain represent?
What set of values does the Range represent?
Domain: x-values
Range: y-values
What is the range of y=x+5, if the domain is 6?
Range would be y=1
How do you find a slope on a graph?
rise/run
What is the slope formula?
m=y2-y1/x2-x1
What is the slope-intercept form?
y=mx+b
What are the domains of the ordered pairs?
(5,2), (-7, 1), (0,3), (4,-4)
{-7, 0, 4, 5}
What determines if it is a function or not?
If there is only one x-value and there are not exactly two numbers as x-values.
If you rise up and run over to the right, is the slope negative or positive?
Positive
If you have (-1,8) and (8,-4), what is your slope?
-4/3
If you have the equation y=2x-5? What is the slope(m), and what is the y-intercept(b)?
m=2
b=-5
What are the range values of the ordered pairs?(-6,0), (-3, 4), (-3, -7), (2, -3), (8,2)
Range:
{-7, -3, 0, 2, 4}
Is this a function?
Ordered Pairs:
(-4,-8), (-3, -6), (0,0), (2,4), (3,6)
Yes
What is the slope if I rise seven and run over to the left 4?
-7/4
If you have (15, -2) and (9,-2), what is the slope?
0/6=0
If you have the equation y=6x-1, what is the slope (m) and y-intercept (b)?
m=6
b=-1
(-4, -1), (0,3), (-2, -7), (8, 5), (2, -6)
What are the domain and range values of the set of ordered pairs?
Domain: {-4,-2,0,2,8}
Range: {-7, -6, -1, 3, 5}
Is this a function?
(-3,-7), (-1, -5), (0, -4), (5, 1), (-1,2)
No
If the slope is 0/4, what is the slope?
Undefined
If you have (-4, -5) and (9,8), what is the slope?
13/13= 1
If the slope is -2/7 and the y-intercept is 2, what is the equation?
y=-2/7x + 2
(-4,1), (8,9), (3,5), (8,2), (7,4)
What is the domain for the set of ordered pairs?
{-4,3, 7, 8}
Determine the domain if the range is y(9) in the function y=-2x+5
Domain is x=-2
If I rise up at 6 and run over to the right 10, what is the slope?
6/10
If you have a set of ordered pairs:
(-1,4)
(-1,7)
(-1, 12)
(-1,15)
What is the slope?
Undefined
If the slope is -1 and the y-intercept is 4, what is the equation?
y=-x+4