Question

Graph the following lines and using the graph determine several values of x for which the graph is positive (negative):

y=−0.5x−2

Answer 1

The equation tells you the line has a y-intercept of -2 and a slope of -0.5. This means it has an x-intercept of -4.

All values of x less than -4 will give positive values for y.

All values of x greater than -4 will give negative values for y.

The graph and a table of some values are shown in the attachment.