203 What's a Derivative MrG 2013.0422

3108 days ago by MATH4R2012

#10) y=x^2-4*x, x=1 f(x)=x^2-4*x g(x)=f(x).diff() show(f(x)) show(g(x)) show(f(1)) show(g(1)) 
       



#10) y-y1 = m(x-x1) #10) y-(-3)=(-2)(x-1) #10) y+3=(-2)(x-1) #10) y+3=-2x+2 #10) y=-2x-1 plot([f(x),-2*x-1],-5,5) 
       
#10) y-y1 = m(x-x1) #10) y-(-3)=(1/2)(x-1) #10) y+3=(1/2)(x-1) #10) y+3=x/2-1/2 #10) y=x/2-7/2 plot([f(x),-2*x-1,x/2-7/2],0,2,aspect_ratio=1) 
       
#20) f(x)=cos(x) f(x)=cos(x) g(x)=f(x).diff() p1=plot(f(x),0,pi,color='red') p2=plot(g(x),0,pi,color='green') p1+p2