Graphing Quadratics Introduction | Baamboozle - Baamboozle

English 14 Public

Finding key features of parabolas.

Study Slideshow

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

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

The height in feet of a tennis ball thrown from the roof is modeled by the equation f(x) = -16(x - 2)^2 + 45. What was the highest the ball went?

45 feet

15

The height in feet of a tennis ball thrown from the roof is modeled by the equation f(x) = -16x^2 + 20x + 31. How high was the roof?

31 feet

15

The height in feet of a tennis ball thrown from the roof is modeled by the equation f(x) = -16(x - 2)^2 + 45. How many seconds passed before the ball started coming back down??

2 seconds

15

Write the equation for the axis of symmetry for y = -2(x + 3)^2 - 7

x = -3

5

What is the vertex of y = -(x - 4)^2 + 6

(4, 6)

5

Which parabola is the narrowest?

y = 9x^2

y = 14x^2

y = (1/8)x^2

y = -x^2

5