How do you find the vertex and the intercepts for #y= -3(x-1)(x+5)#?
Vertex is at
From the given
Expand the right side so that it will take the form
Now it takes the form
We can now solve for the vertex
To solve for the intercept, let us use the given
Solve for x-intercept by setting
Equate both factors to 0
Use again the original equation
there is an intercept at
The graph of
God bless .... I hope the explanation is useful.