SOLUTION: Find the values for a for which the graph y=a^2x^2-2ax-a+1
1) crosses the x-axis
2) does not cross the x-axis
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Question 1136706: Find the values for a for which the graph y=a^2x^2-2ax-a+1
1) crosses the x-axis
2) does not cross the x-axis
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
1) crosses the x-axis
2) does not cross the x-axis
use discriminant D=b^2-4ac
if we have zeros
if we have zeros
find
..simplify
-> put it in calculator and you will get
now try with which is greater then
find x-intercepts:
=> or
check the graph to see x-intercepts
and
if we have two zeros; means there are no x-intercepts
choose any value of greater than : try with
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