WeBWorK Standalone Renderer

The graph of $f(t)$ is shown in the figure. On a separate page, carefully sketch a graph of $\displaystyle F(x)=\int^x_0 f(t)\,dt$ .

Using your graph, at what $x$ -values is $F(x) = -0.75$ ?

$x =$

Give your answer as a list of $x$ -values to the nearest 0.25, or enter none if $F(x)$ is never equal to -0.75.

Graph of $y = f(t)$