Write the range of the function given in the graph in interval notation.<span>However, it is much better to </span>write<span> it in set </span>notation<span> or </span>interval notation<span>. Here's the summary of the domain and </span>range<span> of the </span>given function<span> written in two ways… Because the </span>function<span> involved is a line, I can predict that the </span>range<span> is all y values . It can definitely go as high or as low without any limits.
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d. (-4,3)∪(3,8)</span>
What's the problem? I don't see the equation.
The slope is given as m = 7m=7 and the yy-intercept as b = - \,4b=−4. Substituting into the slope-intercept formula y = mx + by=mx+b, we have
since m=7 and b=-4, we can substitute that into the slope-intercept form of a line to get y=mx+b → y=7x-4
The slope is positive thus the line is increasing or rising from left to right, but passing through the yy-axis at point \left( {0, - \,4} \right)(0,−4).
Step-by-step explanation:
Answer:
the woman has to live 1 mile from work to minimize the expenses
Step-by-step explanation:
Given the data in the question;
the distance within 9 miles ⇒ 0 < x > 9
Total costs Q = cx + 4c/( x + 1)
costs should be minimum ⇒ dQ/dx = 0
⇒ d/dx [ cx + 4c/( x + 1) ] = 0
⇒ ( x + 1)² = 4
take square root of both side
√[ ( x + 1)² ] = √4
x + 1 = 2
x = 2 - 1
x = 1
Therefore, the woman has to live 1 mile from work to minimize the expenses
