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levin69
06.12.2020 •
Mathematics
On a coordinate plane, a curved line with a minimum value of (negative 1, negative 2), crosses the x-axis at (negative 2, 0) and the y-axis at (0, 0). Determine the x-intercepts of the function. Check all that apply. (–2, 0) (–1, –2) (0, 0) (1, 0) (2, 0)On a coordinate plane, a curved line with a minimum value of (negative 1, negative 2), crosses the x-axis at (negative 2, 0) and the y-axis at (0, 0). Determine the x-intercepts of the function. Check all that apply. (–2, 0) (–1, –2) (0, 0) (1, 0) (2, 0)
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Ответ:
Given:
A curved line with a minimum value of (-1,-2), crosses the x-axis at (-2, 0) and the y-axis at (0, 0).
To find:
x-intercepts of the function.
Solution:
The curved line passes through the points (-1,-2), (-2,0) and (0,0).
We know that, y-coordinate is zero at x-intercepts.
From the given points, only (-2,0) and (0,0) have 0 as y-coordinate.
So, x-intercepts of the function are (-2,0) and (0,0).
Therefore, the correct options are 1 and 3.
Ответ:
x>-4
Step-by-step explanation:
First you factor the left side which makes the equation (x+4)(x-1)>0. Then you set both to 0, which would make it x+4>0 and x-1>0. Solve both equations and you get x>-4 and x>1. They overlap, so you can just say that the answer is x>4