03/04/23 Quadratics Review

What does 'f(x)' represent in a linear function?

• The x-intercept of the line

• The output or the value of y

• The y-intercept of the line

• The slope of the line

What is the starting point for graphing a linear function?

• The x-intercept

• The highest point on the graph

• The vertex

• The y-intercept

What shape does a quadratic function's graph typically have?

• A straight line

• A U-shape

• A circle

• An S-shape

What is the formula for finding the axis of symmetry of a parabola?

• x = 2a / b

• x = -b / 2a

• x = b / 2a

• x = -2a / b

If a quadratic function is 'f(x) = x^2 - 4x + 5', what is the x-coordinate of the vertex?

• 1

• -4

• 2

• 3

How do you find the y-coordinate of the vertex in a quadratic function?

• By finding the maximum x-value

• By plugging the x-coordinate of the vertex into the original function

• By using the formula y = -b / 2a

• By calculating the slope

What is the importance of the y-intercept in graphing a linear function?

• It has no importance

• It is the starting point for graphing

• It is used to find the x-intercept

• It determines the slope of the line

What is the vertex of a quadratic function?

• The highest point on the graph

• The point where the graph crosses the y-axis

• The turning point of the graph

• The point where the graph crosses the x-axis

How can you graph a quadratic function without using a calculator?

• By finding the vertex and plotting points around it

• By drawing a straight line

• By plotting random points

• By finding the slope

What does the 'a' term in a quadratic function 'ax^2 + bx + c' represent?

• The direction and width of the parabola

• The x-intercept

• The y-intercept

• The slope