All categories

3 years ago

Need help with writting an linear equation

Mathematics

1 answer:

AleksAgata [21]3 years ago

8 0

Answer:

Step-by-step explanation:

Let y represent the cost of buying the ticket.

Let x represent the number of days

in which the ticket was purchased before the departure day.

The relationship is inversely proportional because as x is reducing, y is increasing. The slope of the equation would be negative

Thus,

Slope = (239 - 189)/(0 - 20 = - 50/20 = - 2.5

If we apply the slope intercept form which is expressed as y = mx + c to model the equation, the y intercept, c would be 239 since it is the y value at which x = 0

The linear function used to model the situation becomes

y = - 2.5x + 239

The cost of the ticket when Marcus buys it for 3 days before his departure would be

y = - 2.5 × 3 + 239

y = - 7.5 + 239

y = $231.5

You might be interested in

Question 3 (2 points)

Sveta_85 [38]

I believe the answer is a

5 0

3 years ago

If f(x)=7x+8 and g(x)=x^4, what is (g°f)(0)

Lina20 [59]

G(f(x))= (7x+8)^4
g(f(x))= (7(0)+8)^4
=(0+8)^4
=8^4
=8•8•8•8
=4,096

8 0

3 years ago

Read 2 more answers

Marcus needs to buy some cabin. At the nearest store, three bags of cat food cost $16.50. How much would Marco spend on five bag

Bumek [7]

Answer:

$82.5

Step-by-step explanation:

$16.50 * 5 = $82.5

6 0

3 years ago

Read 2 more answers

A line includes the points (4, 8) and (3, 5). What is its equation in slope-intercept form? Write your answer using integers, pr

stich3 [128]

Answer:

A line includes the points (4, 8) and (3, 5) whose equation in slope-intercept form will be :

$y=3x-4$

Step-by-step explanation:

The point slope form: $(x_1,y_1) and(x_2,y_2)$

$(y-y_1)=m(x-x_1)$

where : m = Slope of the line

$m=\frac{y_2-y_1}{x_2-x_1}$

A line includes the points (4, 8) and (3, 5).The equation of the line will be:

$m=\frac{5-8}{3-4}=3$

$(y-8)=3\times (x-4)$

$y-8=3x-12$

$y=3x-4$

(y=mx+c), where c is intercept at y axis.

The above equation represents slope-intercept form of the line.

6 0

3 years ago

Use the figure and flowchart Proof to answer the question which property of equality accurately completes reason C

blagie [28]

Answer:

Step-by-step explanation:

The mesa people of the Southwest adapted their homes to their arid ... dry and barren. In order ... To adapt to their environment, the Indians of the Great Basin lived in ... American Indians of the Plateau found it relatively easy to get food because ... The Southeast cultural region was good for farming because its climate has.

7 0

3 years ago

Read 2 more answers