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jodi is considering taking online classes at two websites, LearnCenter and EduWorld. Each site requires that students pay a base membership fee, plus they charge a rate per class. The two graphs show the cost for taking online classes through the two websites.

Sagot :

The cost including the membership fee and the rate per class at each of

the sites can be expressed using linear functions.

Correct Response;

  • The statement that describes the functions are; LearnCenter charges a higher membership fee but a lower rate per class.

Method by which the above response is obtained;

The possible points on the graph are;

Two points on the LearnCenter graph, (0, 50), and (1, 70).

Two points on the EduWorld graph, (0, 20), and (1, 60).

Required:

The statement that best describes the cost function at each site.

Solution:

The slope, m₁ of the LearnCenter graph is found as follows;

[tex]\displaystyle Slope, \ m_1 = \frac{70 - 50}{1 - 0} = \mathbf{20}[/tex]

The equation of the LearnCenter graph in point and slope form is therefore;

y - 50 = 20·x

  • y = 20·x + 50

The slope, m₂, of the EduWorld graph is found as follows;

[tex]\displaystyle m_2 = \frac{60 - 20 }{1 - 0} = \mathbf{ 40}[/tex]

The equation is; y - 20 = 40·x

Which gives;

  • y = 40·x + 20

The above equations are linear functions of the form y = m·x + c

Where;

c = The y-intercept = The membership fee (amount to be paid before taking classes)

m = The slope = The rate per class

Interpretation of graph equations;

The interpretation of the above equations are as follows;

  • The membership fee of LearnCenter is $50.
  • Rate per class at LearnCenter is $20
  • The membership fee of EduWorld is $20
  • The rate per class at EduWorld is $40

The correct option is therefore;

  • LearnCenter charges a higher membership fee but a lower rate per class

Possible question options are;

LearnCenter charges both a higher membership fee and rate per class.

LearnCenter charges both a lower membership fee and rate per class.

LearnCenter charges a higher membership fee but a lower rate per class.

LearnCenter charges a lower membership fee but a higher rate rate per class.

Learn more about linear functions here:

https://brainly.com/question/11867840