The graph represents a cubic function. Write the function.
2 answers:
Zeros are
Write in factor form and solve
- (x-0)(x-(-3))(x-(-4))=0
- x(x+3)(x+4)=0
- x[x(x+4)+3(x+4)]=0
- x(x²+4x+3x+12)=0
- x(x²+7x+12)=0
- x³+7x²+12x=0
Points given (-2,16)
Solve for n
On solving we get
So the function is
- y=-4(x³+7x²+12x)
- y=-4x³-28x²-48x
Answer:
-4x³ - 28x²- 48x
Explanation:
- x-intercept: (-4, 0), (-3, 0), (0, 0)
→ so equation: a(x+4)(x+3)(x+0)
→ substitute these points to find <u>a</u>
so the graphed cubic equation:
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