Question

Please help me I have no idea what I'm doing!

Mrs. Solar modeled Contractor 1’s fee formula with the equation y = 50x + 200, where x represents hours worked and y represents total cost. Please use this information for problems #1-7.

1. Graph the equation y = 50x + 200. Give each axis a label.
(Graph attached)
I will fan and medal thank you!

Answer 1

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Answer 2

Thank you! Can you help with another possibly?

Answer 3

I'll try, let me see it

Answer 4

2. Describe what the equation y = 50x + 200 means in the real-world context.
3. Give 3 ordered pairs that are true to the equation in #2 and explain what each ordered pair means in the real-world context.

Contractor 3 gives Mrs. Solar the following fee table showing his charges for the contract work.

Answer 5

4. What is the rate of change of this table? What does this mean in a real-world context?

5. What is the y-intercept of this table? What does this mean in a real-world context?

6. Write an equation to represent the total cost, y, given x hours (for this table).

7. Graph the equation written in #6.
(These are all part of 3)

Answer 6

Sorry if it is too much

Answer 7

2.It's like someone telling you that the person can do a job for you, but you have to pay them some money first. In this case, it will be, say, $200

Answer 8

Okay makes sense

Answer 9

3.(for number 3 just substitute x = 0, x = 1 and x = 2 into the equations to get your ordered pairs)
so for an example in real world context it might mean that you rent a house for a holiday, $200 up front fee then $50 per day. x is the number of days you stay.

Answer 10

4.The rate of change can be found by taking the total cost divided by the number of hours. It's essentially the "slope" of the line.
$120/2 = $60/hour

Answer 11

(#4 continued)In the real world, that just means the contractor charges $60 for each hour of work.

Answer 12

5.If you graph the points, it's obvious the y-intercept is 0.

In the real world, that just means the cost is $0 when the contractor does 0 hours of work.

Answer 13

6.The general form of a line (slope-intercept) is:
y = mx + b
We already figured out the slope (m) and the y-intercept (b) in the first two parts, so just plug them in:
y = 60x + 0
We can just drop the last part about adding 0, so the simple equation is:
y = 60x

Answer 14

7.Just plot the points and connect them with a line.

Answer 15

Does that help lol

Answer 16

yes it does thank you so much

Answer 17

No problem , good luck

Answer 18

thank you again. Have a nice day!