question archive Consider the function f(x)=4x3-15x2+12x+7 on the interval [-1,3]
Consider the function f(x)=4x3-15x2+12x+7 on the interval [-1,3]
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Consider the function f(x)=4x3-15x2+12x+7 on the interval [-1,3].
Find all x and y intercepts. Specify the answers as ordered pairs. You may use a calculator to help determine the x-intercept(s).
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Step-by-step explanation
Good afternoon !
Let: ?f(x)=4x3−15x2+12x+7?
Cut with x, we make y = 0
So: ?4x3−15x2+12x+7=0? using the calculator
??x≈−0.3822?
???P1?(−0.3822,0)?? Cut with "x"
Cut with y, we make x = 0
So:?y=403−15⋅02+12⋅0+7=7?
??P2?(0,7)? Cut with "y"
