I need major help I might die of being b0red and I need help with these problems. plzz answer all of them. whoever get them correct I will give brainielienst

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12