|
Question 1139683: Suppose that the x intercepts of the graph of y=(x) are -8 and 1. What are the x intercepts of the graph of y=(x+4)? Explain step by step line by line.
Answer by MathLover1(20850)   (Show Source):
You can put this solution on YOUR website!
Suppose that the x intercepts of the graph of  are  and  . What are the x intercepts of the graph of  ?
notice that the  coordinate is always  for the  intercept and the coordinate is always for the intercept.
That is, the intercept is the point ( , ).
if the graph of are and , the points are (,) and (,)
and, the intercepts of the graph of will be where  and 
and
so, the intercepts of the graph of are and 
or at the points ( ,) and (,)
or do it this way:, using zero product theorem
factors of the function  are:
 ...x - intercepts of this function are  and
multiply to expand
now find 
=
= ..........factor completely
=
=
=
=
so, the - intercepts of the graph  are  and
|
|
|
| |
