Question

The curve y=x^2-4x+3 has a gradient of -1 at the point where x=a. Find the value of a.

Answer 1

Answer:

Step-by-step explanation:

given curve y= x^2-4x+3

differentiate wrt x to get gradient,

dy/dx = 2x-4

2a-4= -1

a= 3/2