Which is the domain of the function f(x) =
2 answers:
<em>All real numbers</em>
<h2>Explanation:</h2>Here we have the following constant function:
A constant function is that given by the form:
So this means we will have a line that passes through the y-values c and is parallel to the x-axis. For this type of functions the domain is:
<em>All real numbers</em>
<h2>Learn more:</h2>Direct variation: brainly.com/question/10005560
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25mph.
using the equation distance = speed x time, you can make 2 equations. let x be the original speed of the train, and t be the original time it takes. the first equation is the original trip, the 2nd is your new speed and shortened time.
this is because you are adding 5mph, and taking off 1 hour of time, to still cover the 150 miles. you can solve the first equation for t, and substitute into the second, and then solve for x.
and using the quadratic formula you can find x=25.
using the equation distance = speed x time, you can make 2 equations. let x be the original speed of the train, and t be the original time it takes. the first equation is the original trip, the 2nd is your new speed and shortened time.
this is because you are adding 5mph, and taking off 1 hour of time, to still cover the 150 miles. you can solve the first equation for t, and substitute into the second, and then solve for x.
and using the quadratic formula you can find x=25.