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Between which two ordered pairs does the graph of f(x) = one-halfx2 + x – 9 cross the negative x-axis?

2 Answers

3 votes

Answer:

Explanation:

we have that


f(x) = x^2 + x - 9

Using a graph tool

see the attached figure

The function represent a vertical parabola that open up

the vertex is a minimum-------> is the point (-0.5, -9.3)

The x-intercepts are the points when the y coordinate is equal to zero

The x-intercepts are the points (-3.5, 0) and (2.5, 0)

so

the function cross the negative x-axis at point

therefore, the answer is

(-4, 0) and (-3, 0)

Between which two ordered pairs does the graph of f(x) = one-halfx2 + x – 9 cross-example-1
User Mayur Patel
by
4.2k points
6 votes

Answer:

(-6,0)(-5,0)

Explanation:

Between which two ordered pairs does the graph of f(x) = one-halfx2 + x – 9 cross-example-1
User Akash Babu
by
4.3k points