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7.4b Homework (4)

Last updated almost 6 years ago

8 Nsɛmmisa

True or False; Tell whether the ordered pair is a solution of the equation.

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Identify the independent variable.

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1.

y=2x; (0,2)

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Ɛnyɛ ampa

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2.

y=6x; (2, 12)

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Ɛnyɛ ampa

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3.

y=2x+3; (3,9)

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Ɛnyɛ ampa

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4.

y=x+4; (1,3)

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Ɛnyɛ ampa

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5.

The equation p=8.65h gives the amount p (in dollars) of pay a clerk receives for working h hours. The independent variable is:

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6.

The equation P=4s gives the perimeter P (in inches) of a square mouse pad with a side length of s inches. The independent variable is:

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7.

The equation c=42t+42 gives the total cost c (in dollars) of a grocery bill with a sales tax of t percent (in decimal form). The independent variable is:

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8.

Avocados cost $3 per pound. Write and graph an equation in two variables that represents the cost of buying avocados.