Unit 1&2 Random
Direct Variation
Slope
Domain/Range
X&Y intercepts/
Transformations
Transformations
100
what is the equation for the basic parent function(original line)?
f(x)=x
100
what is the equation used for direct variation?
y=Kx
100
What is the EQUATION and SLOPE of this graph?
x=2
100
What axis does the Domain represent?
What axis does the Range represent?
Domain=X
Range=Y
100
what is another word for X-intercept?
Zero
200
Solve the following equation
y = -3
200
The value of y is directly proportional to the value of x. When x = 280, y = 315.
What is the value of y when x = 40?
45
200
What is the slope of this graph?
M=
1/2
200
When asked to find the domain and range on a graph...
1. If you have a starting and stopping point what are the only two inequality symbols you can use?
2. If you only have one point on the graph how many symbols can you use?
1. lt and le
2. all 4 symbols lt,le,gt,ge
200
What is the zero and y intercept on this graph?
Zero also known as (x intercept) = 3
y intercept = 9
300
f(x)= 3x2+4x-8
what is f(-4)
f(-4)= 24
300
when x varies directly to y, what is the missing Y value?
7.5
300
What is the SLOPE and linear EQUATION (y=mx+b)of the line that passes through the points (-1, 4) and (2, 16)?
y=4x+8
m=4
300
f(x)=6-2x
Domain AND Range would be
*All real Numbers*
300
What are the x-intercept and the y-intercept of the line represented by the equation 5x - 3y = 15
please give me your answer in point form.
x intercept = 3 or (3,0)
y intercept = -5 or (0,-5)
400
The rectangle below has a perimeter of 60 units. What is the length of the longer side?
17 units
400
Karen earns $28.50 for working 6 hours. If the amount m, she earns varies with h, the number of hours she works, how much will she earn for working 10 hours?
$ 47.50
400
What does the slope of the graph of this situation represent?
F. The increase in kilometers per minute of riding time
G. The kilometers of each bike ride
H. The riding time of each bike ride
J. The increase in the minutes of riding per kilometers
F. The increase in kilometers per minute of riding time
400
What is the Domain of this graph?
1 lt x le 4
400
The function f(x) = x is graphed on a coordinate grid. The function g(x) = 3.6x – 2.5 is graphed on the same coordinate grid. Explain what happened to graph g(x) and its Y-intercept compared to its parent function.
graph g(x) is steeper and its y-intercept moved down 3.5 units compared to the parent function
500
A certain function is represented by
f(x)= 8x-1. If f(x)= 47 , find the value of x
x=6
500
The amount of gas consumed by a car varies directly with the miles driven. The car traveled 160 miles and used 10 gallons of gas. If the car traveled 400 miles, how many gallons of gas would be used?
25 gallons of gas
500
The equation 2x – 6y = –18 is in standard form. Solve for the SLOPE and EQUATION by putting the equation in slope-intercept form(y=mx+b)
m=1/3, equation: y=1/3x+3
500
The number of ferryboat trips, f (c), needed to transport c cars in 1 day can be found using the function . If no more than 8,000 cars are transported by ferryboat daily, what is the range of the function for this situation?
A.The set of all integers greater than or equal to 8,000
B.The set of all integers from 0 to 8,000
C.The set of all integers greater than or equal to 400
D.The set of all integers from 0 to 400
D
500
which function best represents the graph of g(x)
F. g(x) = f(x) - 4
G. g(x) = 1/3f(x)
H. g(x) = f(x) - 2
J. g(x) = 3f(x)
J. g(x)= 3f(x)