Does anyone understand 4.05 f(x)=3(4)

what are you trying to find ?

so if  f(x) equals 3(4) that means f times x so f time x = 3(4) which equals 3 times 4 so f =3 and x=4 so 3 times for eqauls 12 so you put a 12.0 and alighn the decimals like so 4.05

                         12.0 but you do this only if you are adding subtraction and multipling

Step-by-step explanation:

hope this isnt confusing

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )