Because the function f(x) =-2+√x+7 has √x, x should be more or equal 0.
Domain is x≥0, or [0,+∞).
The smallest value of x=0, so the smallest value of f(x) is f(0) =-2+√0+7=5,
so range is f(x)≥5, or [5, +∞).
(3x+4)^3=2197 solve this equation
2 answers:
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For this case, we must indicate which of the given graphs corresponds to the following inequality:
If we substitute the point we have:
It is not met, so we discard options A and C.
It is observed that the lines of option B and D correspond to the equation. But the dotted line of option B indicates that the region given by:
is plotted
Thus, the region that indicates is option D
Answer:
Option D
Answer: The value of the y-intercept is
Step-by-step explanation:
The equation of the line in Slope-intercept form is:
Where "m" is the slope and "b" is the y-intercept.
In this case we know that the line passes through point and has a slope of
. Then we can substitute the following values into
:
Then:
And finally, we must solve for "b":