What is the interval notation for the graph shown below?
1 answer:
<h3>Answer: Bottom left corner (southwest corner)</h3>
The left endpoint is x = 4, but we don't include this endpoint because of the open hole. We use a parenthesis to indicate "don't include the endpoint"
The right endpoint is positive infinity. We always use a parenthesis with either infinity since we cannot reach infinity
The interval from 4 to infinity is written as which is like saying
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ANSWER
EXPLANATION
The area of a rectangular art studio is given by the quadratic trinomial:
By comparing this to:
ax²+bx+c
We have a=12, b=5, and c=-2
ac=12*-2=-24
The factors of -24 that gives a sum of 5 are 8,-5
We split the middle term with these factors to get:
Factor by grouping,
The possible dimensions are: