A curve has a gradient function px^2-4x where p is a constant. The tangent to the curve at the point (1,3) is parallel to the straight line y+x-5=0 ?
Can anyone explain gradient function and what is tangent to the point.?? Please explain the concept. I dont understand it.

Question

A curve has a gradient function px^2-4x where p is a  constant. The tangent to the curve at the point (1,3) is parallel to the straight line y+x-5=0 ?
 Can anyone explain gradient function and what is tangent to the point.?? Please explain the concept. I dont understand it.

sasogeek · Answer

a gradient tells the slope of a line. the gradient function of a curve allows you to know the slope of a tangent at any given point.

a tangent is a line that just touches a curve at a point :)

sasogeek · Answer

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