Key features of graphs

What is the shape of the graph of a quadratic function?

• A zigzag

• A U-shape

• A circle

• A straight line

What happens to the graph of a quadratic function when 'a' is between 0 and 1?

• It becomes a straight line

• It disappears

• It shrinks vertically

• It stretches vertically

If 'a' is greater than 1, what transformation occurs to the quadratic function?

• Reflection

• Horizontal stretch

• Vertical stretch

• Vertical shrink

What is it called when the graph crosses the x-axis?

What is it called when the graph crosses the y-axis?

What is it called when the graph crosses the x-axis?

• roots

• x-intercepts

• solutions

• all of teh above

What is the effect of a negative 'a' on the graph of a quadratic function?

• It shifts to the right

• It reflects in the x-axis

• It stretches horizontally

• It becomes a circle

What is the first step in graphing a parabola?

• Calculate the slope

• Create a table of values

• Draw a straight line

• Find the y-intercept