Respuesta :

Answer:

There is only one zero for this function, and it takes place at x = 3

Which seems to agree with answer "c" in your list of options

Step-by-step explanation:

This is the equation of a line with a slope different from zero, therefore, there is only one zero (crossing of the x-axis) for it. We can find it by solving for x when y = 0:

y = - 3 x + 9

0 = - 3 x +9

3 x = 9

x = 9/3

x = 3

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