7. Gradient of a line
B
A
y2
y1
x1 x2
The gradient of a line is constant.
8. Gradient of a curve
The gradient of a curve at a point is the slope of
the tangent line at that point.
http://www.math.umn.edu/%7Egarrett/qy/TraceTangent.html
Tangent line to a curve.ggb
9. Gradient of a curve
The gradient of a curve
varies at each point.
23. Pp
R
S
m =4
m =-6
We found for f(x) = x2
which is a new function that gives the
value of the gradient of the curve at each point.
Para
its derivative: