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Problem 7. (1 point) PART 1. Using the definition of derivative, f' (x) = lim f(x th) - f(z) find the slope of the tangent to the curve at the given point. h-+0 h f(x) = 6x2 + 3x + 7; x = 15 The slope of the tangent to the curve at x = 15 is Enter a numeraical value for the slope. PART 2. The equation of the line tangent to the curve at x = 15 is Type answer in form y = mx + b. Note: You can earn partial credit on this