Mathematics, 24.10.2020 04:30 brillamontijo

Louetta is showing her friend that the slope of a line represented by an equation in standard form, Ax+By=C, can be found using a shortcut that involves the values of A and B. To do this, she rewrites −4x−y=28 in slope-intercept form. The following shows her work.

Step 1: −y=28+4x
Step 2: y=−4x−28
Step 3: The slope is −4, which is the same as −(AB).

At which step, if any, did Louetta make a mistake?

Answers: 1

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Louetta is showing her friend that the slope of a line represented by an equation in standard form,...