1. The point P(7,5) is on the curve y= 3x+4. If Q is the point (x,

The point p (7, 5) is on the curve 3x+4 _ If Q is the point x, 3x+4 find the coordinates of Q for each value of x and the slope of the secant line PQ (correct to 6 decimal places). (i) 7.1 (iv) 69 (ii) 7.01 ("0=5-99 (iii) 7 001 (vi) 6999 Using these results: guess the slope of the tangent line at p (7, 5) Find an equation of the tangent line at