Complete the following steps for this equation.

1 answer:

6 0

1. 4x – 20 = 5y

so 5y = 4x – 20

divide both sides by 5

y = (4/5)x - 4

2. x-intercept is at y=0

so (4/5)x - 4 = 0

x = 5

so it is (5,0)

3. y-intercept is at x=0, y = 0 - 4 = -4

so it is (0,-4)

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As with any problem involving evaluation of a formula, substitute the given values for the corresponding variables and do the arithmetic.

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Comment on these problems

You will notice that the values in part (b) are 5 times those in part (a). So, it is no surprise that the answer in part (b) is 5 times the answer in part (a).

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Venla is 5 years older than her cousin Kora. Write an equation for the age of Venla, v, when Kora is k years old

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V=k+5

Here you go, hope this helps

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