Reporting Category 1
For all x, (2x²-5)²=
A.) 4x⁶-25
B.) 4x⁴-10x²+25
C.) 4x⁴-20x²-25
D.)4x⁴-20x²+25
D.) 4x⁴-20x²+25
What is the slope of the equation y-8+-3(x+6)?
A.) -2
B.) 7
C.) 2
D.) -7
A.) -2
Which equation includes the range values {-4, 0, 2, 4} for the domain {2,0,1,4}?
A.) y=-2x+4
B.) y=3x+5
C.) y=2x+3
D.) y=4x+2
A.) y=-2x+4
The following ordered pairs satisfy the quadratic function of f(x).
(-2,4) (-1,-1) (0,-4) (1,-5) (2,-4) (3,-1)
What is the range of the function?
A.) All real numbers
B.) All real numbers greater than or equal to 0
C.) All real numbers greater than or equal to -5
D.) All real numbers greater than or equal to -5 and less than or equal to 0
C.) All real numbers greater than or equal to -5
When a computer already infected with a virus was turned on, the number of infected files increased by the function f(x)=10(3)x. How many computer files were initially infected when the computer was first turned on?
10
Look at the expression below:
x²+13x+3
Which of the following is equivalent to the expression?
A.) (x-4) (x-9)
B.) (x+4) (x+9)
C.) (x-4) (x+9)
D.) (x+4) (x-9)
B.) (x+4) (x+9)
Graph the system of equation below.
y=-3x-2
y+1=-3(x-1)
What is the solution to the system of equations?
A.) (0,2)
B.) (2,-2)
C.) No solutions
D.) All real solutions
C.) No solutions
A local gym has a rock-climbing wall. The gym charges a one-time training fee of $18, plus $7 per climb. Which of the following equations will give the total cost, c, of climbing the wall x times?
c=18+7x
Which of the following could be a factor of a quadratic function with zeros -2 and 3?
A.) (x-2)
B.) (x+3)
C.) (x-3)
D.) (-x+2)
C.) (x-3)
A scientist measuring the population of rabbits in a region determines the population is growing exponentially. The region initially had 17 rabbits. It had 34 rabbits one year later. To represent this scenario in the form f(x)=abx, what would be the value of a?
A.) 1
B.) 2
C.) 17
D.) 34
C.) 17
Which expression is a factor of 2x²+3x-5?
A.) x+1
B.) 2x-5
C.) 2x-1
D.) x-1
D.) x-1
Graph the system of equations.
y=2x-2
-3x+y=1
What is the solution to the system of equations?
A.) (-3,-10)
B.) (-8,-3)
C.) (-3, -8)
D. All real solutions
C.) (-3,-8)
Jane is driving to her grandmother´s house, which is 14.4 miles away. After 5 minutes, she has driven 4 miles. If she continues at the same pace, what equation can Jane use to find, d, the remaining distance in miles to her grandmother´s after t, minutes driving?
d=14.4-0.8t
Which is true about h(x)=-x2+3x+4?
A.) The zeros are 4 and 1
B.) The zeros are 4 and -1
C.) The zeros are 5 and 2
D.) The zeros are 5 and -2
B.) The zeros are 4 and -1
Bridgette earns a $60,000 salary. Each year she receives a 3% pay increase. Which function can be used to find f(x), the amount Bridgette earns per year in x years?
A.) f(x)=60,000(0.03)
B.) f(x)=60,000(1.03)
C.)f(x)=60,000(1.97)
D.)f(x)=60,000(1.03)
B.)f(x)=60,000(1.03)
Which of the following is true given f(x)=2x²-6?
A.) f(2)=3
B.) f(3)=12
C.) f(-3)=-24
D.) f(-1)=-8
B.) f(x)=12
What the slope of the equation y=6x+3?
A.) 2
B.) 4
C.) 6
D.) 8
C.) 6
A taxi cab company charges $2.25 for the first mile and $0.35 for each additional 0.25 mile. Which equation represents the total cost, c, of traveling m miles in taxi?
c=2.25+1.40(m-1)
Compared to the graph of y=x2, the graph of y=.50x2 will be-
A.) Wider
B.) Steeper
C.) Narrower
D.) Shifted up 1 unit and right 2 units
A.) Wider
Sam bought a new car for $35,000. The car depreciates 12% each year. Which function can be used to find f(x), the value of Sam's car after x years?
f(x)=35,000(1-0.12)x
Which expression is equivalent to 3x²-26x-9?
A.) (3x+1)(x-9)
B.) 3(x-3)(x+1)
C.) (x-3)(3x-3)
D. Cannot be factored
A.) (3x+1)(x-9)
What is the slope of the line that passes through the points (-2,0) and (1,9)?
A.) 1
B.) 3
C.) 5
D.) 7
C.) 5
Which equation represents the line that passes through the points (0,3) and (-4,0)?
-3x+4y=12
Compared to the graph of y=x2, the graph of g(x) =.25f(x) will be-
A.) Narrower
B.) Shifted up
C.) Shifted down
D.) Wider
D.) Wider
what are the solutions to the equation 3x2+21x=54?
x= 2,-9