Asked by Anonymous
f f(x) = (x-4) (x+3) , determine the x-intercept of each function
a)y=f(x)
b) y=-2f(x)
c) y=f(-(x+1))
d) y= f(-1/2x)
please help
a)y=f(x)
b) y=-2f(x)
c) y=f(-(x+1))
d) y= f(-1/2x)
please help
Answers
Answered by
Reiny
I will do c)
follow the same steps for the others
f(x) = (x-4)(x+3)
f(-(x+1)) = (-(x+1) - 4)((-(x+1) + 3)
= (-x-5)(-x+2)
x-intercepts:
-x-5 = 0
x = 5
or
-x+2=0
x = 2
follow the same steps for the others
f(x) = (x-4)(x+3)
f(-(x+1)) = (-(x+1) - 4)((-(x+1) + 3)
= (-x-5)(-x+2)
x-intercepts:
-x-5 = 0
x = 5
or
-x+2=0
x = 2
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