Consider the quadratic function f. f(x) = x - 8x + 15 Solve for yint, the...

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Consider the quadratic function f. f(x) = x² - 8x + 15 Solve for yint, the value of the y-intercept on the graph of y = f(x), and Xint, the value(s) of the x-intercept(s). Then, enter the coordinates of the parabola's vertex. (Use symbolic notation and fractions where needed. Enter coordinates in the form (*, *). If multiple solutions are possible, enter them in a comma-separated list.) Yint = Xint = (x, y) = Consider the quadratic function f. f(x) = x² - 8x + 15 Solve for yint, the value of the y-intercept on the graph of y = f(x), and Xint, the value(s) of the x-intercept(s). Then, enter the coordinates of the parabola's vertex. (Use symbolic notation and fractions where needed. Enter coordinates in the form (*, *). If multiple solutions are possible, enter them in a comma-separated list.) Yint = Xint = (x, y) =