Mid Term Review #4

Front

What is the vertex form of a quadratic function?

Back

f(x) = a(x-h)² + k

Front

What is the vertex of the function y=2(x-3)²+4?

Back

(3, 4)

Front

Find the vertex of the function y=-5x²-20x-26.

Back

(-2, -6)

Front

What is the y-intercept of the function y=x²-3x+9?

Back

(0, 9)

Front

Convert the equation from vertex form y=4(x+2)²-8 to standard form.

Back

y=4x²+16x+8

Front

What does 'a' represent in the vertex form of a quadratic function?

Back

The coefficient that determines the direction and width of the parabola.

Front

What does 'h' represent in the vertex form of a quadratic function?

Back

The x-coordinate of the vertex.

Front

What does 'k' represent in the vertex form of a quadratic function?

Back

The y-coordinate of the vertex.

Front

How do you find the vertex of a quadratic function in standard form?

Back

Use the formula x = -b/(2a) to find the x-coordinate, then substitute back to find the y-coordinate.

Front

What is the significance of the y-intercept in a quadratic function?

Back

It is the point where the graph intersects the y-axis, found by setting x=0.