Quadratic Functions Practice

Vertex of the equation $$f\left(x\right)=2x^2+8x+6$$

What is the y-intercept of the equation $$f\left(x\right)=2x^2+8x+6$$ ?

Does the graph of $$f\left(x\right)=2x^2+8x+6$$ have a maximum or minimum turning point?

What is the vertex of the equation $$f\left(x\right)=-x^2+2x-5$$ ?

Does the graph of $$f\left(x\right)=-x^2+2x-5$$ have a maximum or minimum turning point?

What is the vertex of this graph?

If y = ax²+bx+c , is the a-value of the equation for this graph positive or negative?

What equation is used to find the axis of symmetry?

2x²+6x - 20 = 0

Fully factorise: 3x² - 75