1 3.8.2 - Test: Functions, Equations, and Graphs Unit lest Part 2
Algebra 2 A (CL), 7 20/3. Functions, Equations, and Graphs / 3 8. Functions, Equations, and Graphs Unit Test
1. Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
х
у
7
11
8
13
9
15
17
10
1. Determine whether y varies directly with X. If so, complete steps 2 and 3 below. If not, explain why not.
2. Find the constant of variation, k
3. Write the equation
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y do not vary directly with x

Step-by-step explanation:

Given

x ----- y

7------11

8------13

9------15

10----17

Required

Determine if y varies directly with x

To do this, we make use of the following equation

Where

k = constant of variation

Make k the subject

When

When

Note to have a direct variation, the constant of proportionality must be equal for all corresponding values of x and y.

In the above calculations, we have:

and

Because of the difference in the values of k, we can conclude that y do not vary directly with x.

Hence, there's no need to solve for other x and y values and there's no need to solve for (2) & (3)

which would be true for stem changing verbs?

they have a consistent spelling change in the stem of the verb.

what is different about the verb “venir” as compared to other stem-changing verbs?

only the third person forms have a stem change.

which of the following could not be considered a “stem-changing” verb?

querer

which of the following would not be condsidered an event?

desfile

what word could be used in response to the following?

¿qué quieres comprar?

quero

what word could be used in response to the following?

¿dónde uds. pueden ir?

vamos  

ellos ir al centro comercial.

yo comprar un vestido.

pedimos

dónde tú?

dormes

step-by-step explanation: