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Aleksandr-060686 [28]
3 years ago
7

ida goes to the store to buy groceries. To pay for the groceries, she slides the card through a card reader and puts in a specia

l code. Which payment method is this?
Mathematics
2 answers:
Gekata [30.6K]3 years ago
7 0

it is c my dudes yes hes yes

sdas [7]3 years ago
6 0

Answer:

Credit Card

Step-by-step explanation:

This is most likely a credit card.

You only need to put a special code in when you're inputting a credit cards pin number.

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<h3>Answer:   -13</h3>

=======================================

Explanation:

g(-3) = 2 means x = -3 and y = 2 pair up together to form the point (-3,2)

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Find the slope of the line through the two points (-3,2) and (1,-4)

m = (y2-y1)/(x2-x1)

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m = -1.5

The general slope intercept form y = mx+b turns into y = -1.5x+b after replacing m with -1.5

Plug in (x,y) = (-3,2) which is one of the points mentioned earlier and we end up with this new equation:  2 = -1.5*(-3) + b

Let's solve for b

2 = -1.5*(-3)+b

2 = 4.5 + b

2-4.5 = 4.5+b-4.5 .... subtract 4.5 from both sides

-2.5 = b

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The last step is to plug in x = 7 and compute

g(x) = -1.5*x - 2.5

g(7) = -1.5*7 - 2.5

g(7) = -10.5 - 2.5

g(7) = -13

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