Answer:
One zero.
Explanation:
See the attached worksheet. The zero of a function are the values of x that result in y equaling 0.
The zero of a linear function will only have one point where y is equal to zero (unless the function is horizontal (i.e. both the slope and y-intercept are zero, e.g., y = 0 for all values of x). The zero of a function can be found by setting y = 0 and solving for x. We are not given the actual function, nor are there axis markings on the graph, but if we assume (for fun) that it is y = -2x+2, setting y to zero and solving for x gives us x = 1.
Lacking the details, we can only conclude that the line shown is linear and will intersect the x axis at only one point.
The answer is that this function has only 1 zero point.