The slope of the graph is [tex]-8\frac{1}{2}[/tex].
How to find the slope of a line?
The slope of a line is the change in the independent variable with respect to the change in the dependent variable.
The slope is rise over run.
The slope of the line in the graph be found as follows:
slope = m = y₂ - y₁ / x₂ - x₁
using (1, -8) and (-1, 9)
x₁ = 1
x₂ = - 1
y₁ = - 8
y₂ = 9
Therefore,
slope = m = 9 + 8 / -1 - 1
slope = 17 / - 2
Therefore,
slope = - 17 / 2
slope = [tex]-8\frac{1}{2}[/tex]
learn more on slope here: brainly.com/question/28684893
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