Question

Sanjay consulted three electricians about upgrading the wiring in his home. Each electrician uses a linear formula that incorporates a flat base fee and an hourly rate to determine the cost of service. Those formulas are shown in the table.

Repair Cost Formulas
Electrician
Cost in y dollars for an x-hour service
Electrician | Cost in y dollars for an x-hour service
1 | y = 25 x + 30
|
2 | y = 30 x + 25
|
3 | y = 25 x + 20

Which statement is best supported by the table?
A:Each electrician charges a different hourly rate.
B:Each electrician charges a different base fee.
C:All three electricians charge the same hourly rate.
D:All three electricians charge the same base fee.

Answer 1

Answer:

The answer is B.

Step-by-step explanation:

So the form here is y=ax + b ( a indicates the hourly rate and b indicate the base fee).

For C and D, they are wrong because a1 = 25, a2= 30, a3 = 25

                                                               b1= 30, b2 = 25, b3 = 20

they are not the same.

Between A and B, A has EACH charges a different hourly rate but u can see, a1 and a3 are the same.

So it is B, they are different.

Answer 2

Answer: it is B

Step-by-step explanation: I’m luscious