Linear Equations
Determine whether each relation is a function. Explain.
(-2,-3)
(0,6)
(3,6)
(4,9)
For each member of domain, there is only one member of range. So this mapping represents a function.
The expression (m)mi/(g)gal represents the gas mileage of a car. Find the gas mileage that goes 295mi on 12 gallons of gas. round to the nearest tenth.
A.17.8
B.9.1
C.24.6
D.100
C.24.6
Find the vertex of this equation.
y=-3x2-12x-9
maximum
what is the domain of the function y=2(152)
A.all real numbers
B.-2<x<15
C.-infinity<y<15
D.-infinity<y<2
A.all real numbers
What is the y-intercept of this equation -5x+3y=-9
Y-intercept= -3
What is the solution to the equation
p2+b/2=27
A. 0
B. 6
C. 7
D. 10
C. 7
Evaluate the expression for the given value. 3x+y if x=-4 and y=2
A.-10
B.11
C.25
D.7
A.-10
What is the minimum/maximum value?
y=3x2+18x-21
-48
what is the range of the function y=(2/3)x-6
A.0<x<infinity
B.-6<x<infinity
C.all real numbers
D.-6<y<infinity
D.-6<y<infinity
A cellphone company dropped the price on their phones by 9%.which expression shows the new price of the phones (p)
0.09
Find the x and y intercept
(0,10080)
(2,8640)
(6,5760)
(10,2880)
(12,1440)
(14,0)
x-intercept= 14
y-intercept=10,080
Solve 3a+6 is less than or equal to 4a.
6 is greater than or equal to A.
What is the minimum/maximum value ?
y=-x2-14x-16
A. 10
B. 12
C. 33
C.33
what is the range of the function y=4x
1
What is the transformation from f (×)=×-2 to g (×)=×+1
Shifting left 3
What is the x-intercept of 2x+4y=16 ?
x=8
Solve x-12 is greater than or equal to 8.
x is greater than or equal to 20.
what is the vertex of this equation y=-2x2-8x+1
maximum
the number of users, in millions, that belong to a social networking site can be represented by y=1.5(1.40)t, where is t is the number number of years after 2013. interpret the parameters of the equation. make a prediction about the future numbers of users.
40 million by 2023
What is the value of x in the solution to the systems of equations below
2x+1y=1
X=-2
Express (2,5), (-2,3), (5,-2), (-1,-2)
x:2,-2,5,1
y:5,3,-2,-2
Break down the inequality of m+19>56.Once simplified, what is the answer
m > 37
what is the maximum value of this equation y=-x2-6x-5
4
the function c=179(1.029)t models the amount of soda consumed in the world, where c is the amount consumed in millions of liters and t is the number of years since 2000.how much soda was consumed in 2005?
206.5 million liters
Write the equation of this table
(24,96)
(23,92)
(19,76)
(15,80)
Y=4x