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Alexxx [7]
3 years ago
7

3 – (–3) 7 – 4 = a. 14 b. 9 c. 12 d. 2

Mathematics
1 answer:
VLD [36.1K]3 years ago
6 0
B. 9

3+3+7-4
6+7-4
= 9

The answer is B.
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The final price would be $26.95

Step-by-step explanation:

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Answer:

# means number

Step-by-step explanation:

Distance = Y-axis or output

Cost= X-axis or input

you do not need to add the brackets for the formula(BEDMAS), but it makes things clearer

For A -

the Y-intercept is where the first coordinate, or the # or the X-axis, is 0 (on the graph the y-intercept 0,4)

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y = mx + b

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or

formula = (input x increase in the slope) + output for 0 or (distance x increase in cost) + output for 0

input(x axis)         output(y axis)

0                 5    ← output for 0

1                  9  

2                 13

there is a +4 increase in the slope, the increase in the slope is an output #(in this case 9) - the previous output number (in this case 5)

formula = (input x increase in the slope) + output for 0 = distance

formula in use = (3 x 4) + 5 = 17

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The dependent variable is the output or the cost because the input or the distance will determine the cost travelled. Eg. if I travel 9 miles it will cost $41. If the dependent variable is the cost then the independent variable is the distance

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(4.2 miles x $4) + 5

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For E: (distance x increase in cost) + output for 0

(? x 4) + 5 = 14

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9 ÷ 4 = 2.25miles; with 14 dollars I could travel 2.25 miles

(It is a bit confusing lol, but this is the way I understand it, if you can't understand it this way then use y = mx + b)

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Step-by-step explanation:

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