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ECO algebra 1. 
Which of the following equations is an example of the commutative property?
a. (3)(6+10) = 18 + 30 
b. 18 + 30 = 30 + 18 
c. (3)(6) + (3)(10) = 3(16) 
d. 48 = 48

Let the equation of a line be described by Equation A:
10y - 5x = 40
What are the y-intercept and slope of the line?
a. The y-intercept is 40, and the slope is 10
b. The y-intercept is 10, and the slope is 40
c. The y-intercept is 40, and the slope is 2
d. The y-intercept is 4, and the slope is 0.5

Sagot :

[tex]1.\\Communicative\ proprety:\\\\a+b=b+a\\\\Answer:\\b.\ 18+30=30+18[/tex]



[tex]1.\\y=mx+b\\\\m-a\ slope\\\\b-y-intercept\\-----------\\\\10y-5x=40\ \ \ /+5x\\10y=5x+40\ \ \ /:10\\y=0.5x+4\to m=0.5\ and\ b=4\\\\Answer:\\d.\ The\ y-itercept\ is\ 4\ and\ the\ slope\ is\ 0.5[/tex]
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