2 equivalent expressions always have the same amount. They always equal the same number.
Given that t<span>here
are 20 light bulbs in 5 packages.
The table to find the rate
that gives you the number of light bulbs in 3 packages is given as follows:
Three different ways in which the rate can be written are:
12 light bulbs to 3 packages
12 light bulbs : 3 packages
12 light bulbs / 3 packages
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Okay, first you got to simplify the mixed numbers. Example: 2 and 1/2. I got 5/2, how is this? first multiply 2 * 2 then add 1 from the numerator. sorry if this doesn't make since. You got to do this before you do the actual math.
To find X:
-b/2a=-2/2(-2)=.5
plug in .5 to the equation to find y.
-2(.5)²+2(.5)+1
=1.5
Vertex: (.5,1.5)
Axis of symmetry:
x=.5