Does this table represent a proportional relationship? If so, what is the constant of proportionality? Explain

Can someone answer this question? : )

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no