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Alg 4.2.1 HW 4-36 to 4-41

Last updated over 4 years ago

15 questions

4.2.1 Solving Systems of Equations Using Substitution

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4-36 Ms. Hoang’s class conducted an experiment by rolling a marble down different length slanted boards and timing how long it took. The results are shown at right. Describe the association by selecting the true statements
below.

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8a + a - 3 = 6a - 2a - 3

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(m + 2)(m + 3) = (m + 2)(m - 2)

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part b Solve the system of equations above to determine how many touchdowns and how many field goals the Fabulous Footballers had last night.

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4-39 Yesterday Mica was given some information and was asked to find a linear equation. But last night her cat destroyed most of the information! Complete the table and graph the line that represents Mica’s rule.

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Mica thinks the equation for this graph could be 2x+y=−3. Is she correct?

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How do you know?

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