Question: The gradient of the line joining the points on the curve $y = x ^ { 2 } + 2 x$, whose abscissae ar...

Question

The gradient of the line joining the points on the curve $y = x ^ { 2 } + 2 x$ , whose abscissae are 1 and 3, is

Answer 1

The points are (1, 3) and (3, 15)

Hence gradient is = $\frac { 12 } { 2 } = 6$

Question: The gradient of the line joining the points on the curve \(y = x ^ { 2 } + 2 x\), whose abscissae ar...