Since the slope is -2, then m=-2. Since the y-intercept is 5, b=5. Then, we can create the equation: y=-2x+5
Since the slope is , then m=
. Since the y-intercept is -3, b=-3.
Then, we can create the equation: y=x-3
For a school play, the teacher asked the class to set up chairs in 20 rows with 25 chairs in each row. After setting up all the
2 answers:
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Answer:
x = ± 2
Step-by-step explanation:
Given
x² + 5 = 3x² - 3 ( subtract x² + 5 from both sides )
0 = 2x² - 8 ( add 8 to both sides )
8 = 2x² ( divide both sides by 2 )
4 = x² ( take the square root of both sides )
x = ± = ± 2