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3 years ago

It is math( help please

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

8 0

Look at the picture.

It's a linear function.

A slope-point formula:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (1, 250) and (2, 300).

Substitute:

$m=\dfrac{300-250}{2-1}=\dfrac{50}{1}=50\\\\y-250=50(x-1)\\\\y-250=50x-50\qquad|+250\\\\y=50x+200$

Calculate the value of function for x = 12:

$y=50(12)+200=600+200=800$

<h3>Answer: 800</h3>

leva [86]3 years ago

7 0

After 12 months, Quynh will have saved $800

Simply follow the pattern shown on the graph.

Month 1: 250

Month 2: 300

Month 3: 350

Month 4: 400

Month 5: 450

Month 6: 500

Month 7: 550

Month 8: 600

Month 9: 650

Month 10: 700

Month 11: 750

Month 12: 800

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<u>Answer-</u>

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<u>Solution-</u>

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