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English 25 Public

Finding key features of parabolas.

Study Slideshow

(-8i)(-2i)

-16

10

Write the equation for the axis of symmetry for y = x^2 + 5x + 1

x = -5/2

10

Write the equation for the axis of symmetry for y = x^2 + 1 .

x = 0

10

Which equation matches the graph? A. y = x^2 + 4x + 3__B. y = x^2 - 5x + 3 C. y = x^2 + 3__D. y = x^2 + 5x + 3

B. y = x^2 - 5x + 3

25

Which equation matches the graph? A. y = x^2 + 4x + 3__B. y = x^2 - 5x + 3 C. y = x^2 + 3__D. y = x^2 + 5x + 3

A. y = x^2 + 4x + 3

25

(3i)(-11i)

33

10

What is the y-intercept for y = -5x^2 + 14x - 47

(0, -47)

5

What is the y-intercept for y = x^2 - 19x + 3

(0, 3)

5

Which function has the same y-intercept as the one in the graph?_ A. y = x^2 - 3x + 2__B. y = -2x^2 + 11x - 8 C. y = 4x^2 + 5x - 9__D. y = -x^2 + 6x - 4

D. y = -x^2 + 6x - 4

10

Which function has the same y-intercept as the one in the graph? __ A. y = x^2 - 3x + 2__B. y = -2x^2 + 11x - 1 C. y = 4x^2 + 5x - 9__D. y = -x^2 + 6x - 4

B. y = -2x^2 + 11x - 1

15

What is the end behavior of this graph?

As x --> ∞, f(x) --> -∞. As x --> -∞, f(x) --> ∞.

15

What is the end behavior of this function? f(x) = 6x^4 - 11x^3 + x - 4

As x --> ∞, f(x) --> ∞. As x --> -∞, f(x) --> ∞.

20

What is the end behavior of this function? f(x) = 6x^4 - 11x^8 + x - 4

As x --> ∞, f(x) --> -∞. As x --> -∞, f(x) --> -∞.

20

What is the end behavior of this function? f(x) = (x - 5)(x - 3)^2

As x --> ∞, f(x) --> ∞. As x --> -∞, f(x) --> -∞.

25

What is the end behavior of this function? f(x) = -2(x - 5)(x + 1)^2(x - 3)^2

As x --> ∞, f(x) --> -∞. As x --> -∞, f(x) --> ∞.

25

Simplify 16^(1/4)

2

15