x3+x2+kx-2 And (x-1) is a factor
so,
Substitute +1 in places of only x
(1)*3+(1)*2+k*(1)-2
3+2+k-2
5+k-2
3+k Now, as (x-1) is a factor Equate 3+k to Zero
3+k=0
k=-3
Hope it helped you!!!!!!
<span>To fill out a sign chart, you will need to use test numbers before and after each of the function's zeros and vertical asymptotes.
A sign chart is a chart which help in solving polynomial inequalities.</span>
i wanna say its 20x i think
But i hated this!
Vertex is -b/2a. The variable b=2 and a=2. That finds the x coordinate of the vertex. Then to find the y coordinate you just plug the number you got for x (-1/2) into the equation. Like so:
y = 2x+2
y = 2(-1/2)+2
y = -1+2
y = 1
So your vertex is ( -1/2, 1 )
To graph your vertex you take your x coordinate (-1/2) and find it on the x axis of the graph (horizontal line). Then do the same for y (1) (on the vertical axis.
Now that you have your vertex graphed you can find out if it is minimum or maximum by looking at the direction in which the slope is going. If it goes in the positive direction (up) then it is a minimum since that is the lowest point that the line touches. If it is maximum it is opposite. The line faces down and the highest point the line touches is that point.
