Unit 2 - Linear Functions POST test
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Erin Groves
Used 3+ times
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A faucet leaks water at a constant rate. Andrea places a measuring cup underneath the leak to catch the water. The table shows the number of millimeters of water in the cup at different times.
What is the average rate of change?
Un grifo pierde agua a un ritmo constante. Andrea coloca una taza medidora debajo de la fuga para recoger el agua. La tabla muestra la cantidad de milímetros de agua en el vaso en diferentes momentos.
¿Cuál es la tasa de cambio promedio?
4
-4
1/4
-1/4
Tags
CCSS.8.F.B.4
CCSS.HSF.IF.B.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A faucet leaks water at a constant rate. Andrea places a measuring cup underneath the leak to catch the water. The table shows the number of millimeters of water in the cup at different times.
Write a function to model the table of values (write an equation in slope-intercept form)
Un grifo pierde agua a un ritmo constante. Andrea coloca una taza medidora debajo de la fuga para recoger el agua. La tabla muestra la cantidad de milímetros de agua en el vaso en diferentes momentos.
Escribe una función para modelar la tabla de valores (escribe una ecuación en forma pendiente-intersección)
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
3.
DRAW QUESTION
3 mins • 1 pt
Gina has saved $420. She plans to spend $35 each month for music lessons. The function f(x)=-35t+420 describes her savings, s, in dollars as a function of the time, t, in months.
Graph the function that describes Gina's savings as a function of time she works. (draw on the graph)
Gina ha ahorrado $420. Ella planea gastar $35 cada mes en lecciones de música. La función f(x)=-35t+420 describe sus ahorros, s, en dólares en función del tiempo, t, en meses.
Grafique la función que describe los ahorros de Gina en función del tiempo que trabaja. (dibuja en el gráfico)
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Gina has saved $420. She plans to spend $35 each month for music lessons. The function f(x)=-35t+420 describes her savings, s, in dollars as a function of the time, t, in months.
Which is the correct explanation of the x- and y-intercepts within the context of the problem situation. Select all that apply.
Gina ha ahorrado $420. Ella planea gastar $35 cada mes en lecciones de música. La función f(x)=-35t+420 describe sus ahorros, s, en dólares en función del tiempo, t, en meses.
¿Cuál es la explicación correcta de las intersecciones x e y dentro del contexto de la situación problemática? Seleccione todas las que correspondan.
x-intercept at (12, 0) means Gina has $0 at 12 months.
La intersección con el eje x en (12, 0) significa que Gina tiene $0 a los 12 meses.
x-intercept at (420, 0) means Gina has $420 at 0 months.
La intersección con el eje x en (420, 0) significa que Gina tiene $420 a los 0 meses.
y-intercept at (0, 420) means that Gina has $420 at month 0.
La intersección con el eje y en (0, 420) significa que Gina tiene $420 en el mes 0.
y-intercept at (0, 12) means that Gina has $12 at month 0.
La intersección con el eje y en (0, 12) significa que Gina tiene $12 en el mes 0.
Tags
CCSS.HSF.LE.B.5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The graph of the function f is shown on the xy-plane. Which of the following could define f?
La gráfica de la función f se muestra en el plano xy. ¿Cuál de los siguientes podría definir f?
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The total cost, in dollars, for all binders purchased
El costo total, en dólares, de todas las carpetas compradas.
The total cost, in dollars, for all notebooks purchased
El costo total, en dólares, de todas las computadoras portátiles compradas.
The total cost, in dollars, for all binders and notebooks purchased
El costo total, en dólares, de todas las carpetas y cuadernos comprados.
The difference in the total cost, in dollars, between the number of binders and notebooks purchased
La diferencia en el costo total, en dólares, entre la cantidad de carpetas y cuadernos comprados.
Tags
CCSS.HSF.LE.B.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is a true comparison for the two functions?
¿Cuál es una comparación verdadera para las dos funciones?
y-intercept of f < y-intercept of g
rate of change of f(x) > the rate of change of g(x)
f(3) = g(3)
f(-1) > g(-1)
Tags
CCSS.8.F.A.2
CCSS.HSF.IF.C.9
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