Part 1 − Find the vertex, axis of symmetry, domain, and range of the graph of y = −3x2 − 3x + 4. Show all work for full credit.

Part 2 − Using complete sentences, explain how you can determine the axis of symmetry, the domain, and range without graphing y = −3x2 − 3x + 4.

Question

Part 1 − Find the vertex, axis of symmetry, domain, and range of the graph of y = −3x2 − 3x + 4. Show all work for full credit.

Part 2 − Using complete sentences, explain how you can determine the axis of symmetry, the domain, and range without graphing y = −3x2 − 3x + 4.

anonymous · Answer

Do you know how to find the vertex?

anonymous · Answer

First of all the coefficient of $$x ^{2}$$ is negatif (i.e -3)

anonymous · Answer

so the parabola has an maximum

anonymous · Answer

you have to find the roots using the quadratic formula

anonymous · Answer

$$x _{1,2}=\frac{ -b \pm  \sqrt{b ^{2}-4ac} }{ 2a}$$

anonymous · Answer

x1=$$\frac{ 3+\sqrt{9-4(-3)4} }{ 2(-3) }$$

anonymous · Answer

x1=-1.75

anonymous · Answer

x2=0.75

anonymous · Answer

|dw:1371566396504:dw|