Maths-
SAT
Easy
Question
y = (x-h)2 (x+h)(x+k)
The equation above is graphed in the xy-plane. If h and k are positive constants and h k, how many distinct x-intercepts does the graph have?
- 1
- 2
- 3
- 4
The correct answer is: 3
x – intercepts = y = 0
(x - h)2 (x + h) (x + k) = 0
= x = h or – h or – k
3 distinct values of x – intercepts
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