Linear Functions
In the equation y = 5, the 5 is the...
What is y-intercept
How many real solutions does the equation x2 - 2x + 5 = 0
What is there are no real roots
If x = 3 and y = 2 •3x, solve for y
What is 54
What is the smallest integer that satisfies the equation -6x < -18?
(1) 3
(2) 4
(3) 5
(4) 6
What is (2) 4
The system of equations which can be used to model the following scenarios? There are 50 animals. Some of the animals have 2 legs and the rest of them have 4 legs. In total there are 172 legs.
What is x + y = 50
2x + 4y = 172
Solve for 'a' in the equation h = a • b + r in terms of h, b, and r.
What is a = (h-r)/b
State the quadratic formula.
What is x= -b + or the square root of b2 - 4ac all over 2a
The base of an exponential function is 1/2. The function is always (increasing, decreasing, constant)
What is decreasing, the base is between 0 and 1
Amelia buys an empty sticker album and some sticker sheets. The equation that relates the total cost for the empty sticker album and 'N' sticker sheets is P= 0.75N + 300. What does the number 0.75 in the equation represent?
The cost of each sticker sheet
In the system of equations 5x - 4y = 43
y = -x - 4,
the x coordinate
What is x = 3?
Factor the quadratic y = x2 - 6x + 8 and then tell me the zeros of the parabola
What is (x-2) and (x-4) and the zeros are 2 and 4.
What is the value of x in the equation 4(x+2) = 1
(1) 2
(2) -1
(3) -2
(4) 0
What is (3) -2
What is the maximum point of the equation
f(x) = - | x + 9|
What is the vertex point which is (-9,0)
After Allie takes some medicine, each hour the number of milligrams of medicine (M) remaining in her body after t minutes can be modeled with the equation M=200(1-0.27)t. The percent decay.
What is 27%
The coordinates of the point from the system of equations,
3x + 12y = 21
6x + 4y = 22
What is (3,1)
Solve this system of equations algebraically. y= x2 y = 2x + 3
What is (-1,1) and (3,9)
In what interval is the graph of y = 1.5x increasing? (1) Always
(2) When x is greater than or equal to 0
(3) Never
(4) When x is greater than equal to 1
What is (1) Always
How does the graph of f(x) = | x - 5 |+ 2 shift from the parent function f(x) = |x|?
What is it shifted to the right 5 and up 2
The height of a projectile thrown in the air can be modeled with the equation h= -16t2 + 48t + 160, where t is the number of seconds. At 1.5 seconds, how high will the projectile reach?
What is 196 ft.
All of these ordered pairs are part of the shaded region for the inequality 2x + y < 12 except
(1) (2,7) (2) (3,4)
(3) (5,3) (4) (5,0)
What is (3) (5,3)
X= -4 is the x-coordinate of the vertex for the parabola defined by which equation?
(1) y= x2+8x+3
(2) y= x2-8x+3
(3) y= x2+4x+3
(4) y= x2-4x+3
What is (1) y= x2+8x+3
The population (P) of a town after t years can be modeled with the equation P= 20,000(1.07)t. What does the 1.07 represent?
The population is increasing by 7% each year
f(x) = -2|4x+3|, -2 in the equation changes the function |x|
What is making it narrower and reflect over the x axis or point down
There are 900 birds in a forest. Each year the bird population decreases by 12%. The equation which relates the bird population (P) to the number of years that have passed?
What is (1) P=900(.88)t