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1.5 Warm-up Solutions

Problem

  1. By graphing on your calculator, adjust your window to see all x & y intercepts of the given equations.
    • 2
    • 4+ 6 = y

  2. Find all solutions to the following equations:
    • 5x + 4 = 6x – 7
    • 6

Solution

1.a.   y – intercepts: (0, -75)

x - intercepts: (-5, 0) (5, 0)

1.b.   y – intercepts: (0, 6)

x-intercepts: (-3, 0)

2a.    5x + 4 = 6x – 7

First, get all variables on one side and constants on the other side:

2
we then will multiply or divide both sides by –1, to get our solution

 

2b.    4
        since the last equation is not true, this equation has no solutions.

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