Question

determine o zero das funções dadas por a) y = -4x + 24

Answer 1

y=-4x+24

0=-4x+24

4x=24

x=6

y=-4×0+24

y=24

xER

y'=d/dx(-4x+24)

y'd/dx(-4x)+d/dx(24)

y'=-4+d/dx(24)

y'=-4+0

y'=-4

lim(-4x+24)

x→+∞

lim(-4x+24)

x→-∞

-∞

lim(-4x+24)

x→-∞

-∞

+∞

y+4x=24

4x+y=24

y+4x-24=0

4x+y-24=0

4x+y=24

4x=24-y

x=6-1/4 y

x=6-1/4 y , yER