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3 years ago

Which of the following does not represent the function f(x)=2x+3

Mathematics

1 answer:

Agata [3.3K]3 years ago

5 0

C is incorrect.
While the slope is 2, (calculated by rise over run), the y intercept is incorrect. The equation 2x+3 is written in slope intercept form (mx+b where b is y intercept). Therefore we can tell that 3 should be the y intercept. The y intercept on the graoh, however, is -3.

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Find where the two lines intersect.Please help

ElenaW [278]

7. (4,5) 8. (5,-3) hope that helps

8 0

2 years ago

Suppose the rent for an apartment is $9,000 for the first year. The rent is expected

Maurinko [17]

Answer: $57,000

Step-by-step explanation:

Understand what is being asked. 1st yr is 9000. Yr 2 is 9000+1200= 10200. Yr 3 =10,200+1200=11,400. Yr 4 is 11,400 +1200=12,600 and Yr 5 is 12600+1200=13,800. Over the course of 5 yrs you are paying 9000+10200+11400+12600+13800 which has a total sum of $57,000.

8 0

3 years ago

Read 2 more answers

Help solving this problem, the second problem not the third

yawa3891 [41]

Given:

1 Van and 4 buses filled with 195 students.

1 Van and 5 buses filled with 241 students.

Let x and y be the number of students in Van and number of students in bus.

$\begin{gathered} x+4y=195\ldots\text{ (1)} \\ x+5y=241\ldots\text{ (2)} \end{gathered}$

Subtract equation (1) from equation (2)

$\begin{gathered} x+5y-x-4y=241-195 \\ y=46 \end{gathered}$

Substitute y=46 in equation (1)

$\begin{gathered} x+4(46)=195 \\ x+184=195 \\ x=195-184 \\ x=11 \end{gathered}$

Number of students that van can carry is 11.

Number of students that bus can carry is 46

7 0

1 year ago

In this problem, x = c1 cos t + c2 sin t is a two-parameter family of solutions of the second-order DE x'' + x = 0. Find a solut

Norma-Jean [14]

Differentiate the given solution:

$x=C_1\cos(t)+C_2\sin(t) \implies x'=-C_1\sin(t)+C_2\cos(t)$

Now, given that x (π/4) = √2/2 … (I'm assuming there are symbols missing somewhere) … you have

$\dfrac{\sqrt2}2=C_1\cos\left(\dfrac\pi4\right)+C_2\sin\left(\dfrac\pi4\right)$

$\implies\dfrac1{\sqrt2} = \dfrac{C_1}{\sqrt2}+\dfrac{C_2}{\sqrt2}$

$\implies C_1+C_2=1$

Similarly, given that x' (p/4) = 0, you have

$0=-C_1\sin\left(\dfrac\pi4\right)+C_2\cos\left(\dfrac\pi4\right)$

$\implies 0=-\dfrac{C_1}{\sqrt2}+\dfrac{C_2}{\sqrt2}$

$\implies C_1=C_2$

From this result, it follows that

$C_1+C_2=2C_1=1 \implies C_1=C_2=\dfrac12$

So the particular solution to the DE that satisfies the given conditions is

$\boxed{x=\dfrac12\cos(t)+\dfrac12\sin(t)}$

7 0

2 years ago

3. In order to become a member of

ExtremeBDS [4]

The equation in slope-intercept form that represents the total fee "y"

to become a member of the library-all-star-members club for "x"

months is y = 2 x + 40

Step-by-step explanation:

The linear in the form of slope-intercept is y = m x + c, where

1. m is the slope of the line

2. c is the y-intercept

Slope of the line represents the monthly fee ⇒ paid every month

y-intercept represents the sign-up fee ⇒ paid once

To become a member of the library-all-star-members club, there is

a $40 sign-up fee and a $2 monthly fee

∵ The monthly fee is $2

∴ m = 2

∵ The sign-up fee is $40

∴ c = 40

∴ The equation is y = 2 x + 40, where y is the total member fee for

x months in the library-all-star-members club

The equation in slope-intercept form that represents the total fee "y"

to become a member of the library-all-star-members club for "x"

months is y = 2 x + 40

Learn more:

You can learn more about linear function in brainly.com/question/4326955

#LearnwithBrainly

4 0

3 years ago