Question

IS THIS CORRECT!!!!!!!!!!!!!

Answer 1

 For this case, the first thing we must do is define variables.
 We have then:
 x: number of devices.
 Y: plan charge
 For the current plan we have: 
 $y = 175$
 For the new plan we have:
 $y = 4.5x + 94$
 Since we want the new plan to be smaller than the current plan, then we have:
 $175\ \textgreater \ 4.5x + 94$
 From here, we clear the value of x:
 $4.5x \ \textless \ 175 - 94 x \ \textless \ 81 / 4.5 x \ \textless \ 18$
 Answer:
 x <18
 Note: The graph is correct

Answer 2

Answer:

The graph is the region (-∞,18)

i.e. the shaded region to the left of 18 and open circle at 18.

Step-by-step explanation:

It was given that the cost of the current plan is: $ 175 per month.

Also, the flat rate of new plan is: $ 94

Also, cost of 1 device is: $ 4.50

cost of x device is: $ 4.50x

Total cost of the new plan for x devices is: $ (94+4.50x)

Now we are asked to find the inequality such that the total cost of new plan is less than the current plan i.e.

94+4.50x < 175

i.e. 4.50x < 175-94

i.e.  4.50x < 81

i.e. x<18

Hence,the graph would be a line to the left of 18 with open circle at 18, since the inequality is strict.