All categories

3 years ago

Does the equation y=2x+4 show proportional relationship between x and y? Explain.

Mathematics

1 answer:

Svetlanka [38]3 years ago

5 0

No - a proportional relationship would be of the form y = kx or y = k/x where k is some constant.

You might be interested in

What is the initial value in the function 2x + 3y = 6?

maw [93]

<h2>Explanation:</h2><h2></h2>

The initial value of this function is the y-intercept. We know that the slope-intercept form of the equation of a line is given by:

$y=mx+b \\ \\ \\ Where: \\ \\ \\ m:slope \\ \\ b:y-intercept$

Writing our equation in slope intercept form:

$2x + 3y = 6 \\ \\ \\ \text{Subtract 2x from both sides}: \\ \\ 2x -2x+ 3y = 6-2x \\ \\ 3y=6-2x \\ \\ \\ \text{Divide both sides by 3}: \\ \\ y=\frac{6-2x}{3} \\ \\ y=-\frac{2x}{3}+2$

So the initial value is:

$b=3$

5 0

3 years ago

Jamel earned $5 an hour mowing lawns he spent $25 on a DVD how much will he have left what number do you need to solve the probl

Dimas [21]

Wait if he worked 1 hour this question still makes no since

8 0

3 years ago

The perimeter of a rectangular metal plate is 15 cm. Find the length of the rectangular plate (in decimals) whose width is 228 c

scoray [572]

The Solution.

Representing the problem in a diagram, we have

By formula,

$P=2(L+W)$

In this case,

$P=15\operatorname{cm},L=?,W=\frac{22}{8}cm$

Substituting these values in the formula above, we get

$15=2(L+\frac{22}{8})$

Clearing the bracket, we get

$15=2L+(2\times\frac{22}{8})$ $\begin{gathered} 15=2L+\frac{11}{2} \\ \\ 15=2L+5.5 \end{gathered}$ $\begin{gathered} 15-5.5=2L \\ 9.5=2L \end{gathered}$

Dividing both sides by 2, we get

$L=\frac{9.5}{2}=4.75\approx4.8\operatorname{cm}$

Therefore, the correct answer is option C.

6 0

1 year ago

Someone answer the whole thing fast plz

Brilliant_brown [7]

Answer:

y = 2x + 54

Step-by-step explanation:

slope of equation:

(y2-y1)/(x2-x1)

= (72-58)/(9-2)

= 14/7

= 2

y = 2x + b

58 = 2(2) + b

58 = 4 + b

b = 54

6 0

3 years ago

PLEASE HELP VERY CONFUSED ON WHERE THE DOTS ARE.

liq [111]

Answer:

(3,3) ( 1,2) (3,1) (-2,-2) (-2 3)

Step-by-step explanation:

have a good day

4 0

3 years ago

Read 2 more answers

Does the equation y=2x+4 show proportional relationship between x and​ y? Explain.

Does the equation y=2x+4 show proportional relationship between x and y? Explain.