Download presentation

Presentation is loading. Please wait.

1
**Sketching a Parabola if the x-Intercepts Exist**

2
**What do you Need to Sketch a Parabola?**

Can you sketch a parabola if you only know where its y-intercept is? For example, if the y-intercept of a parabola is (0,-15) can you sketch the graph? Why or why not? NO! You can NOT determine whether it opens up or down.

3
**What do you Need to Sketch a Parabola?**

Can you sketch a parabola if you only know where its x-intercept are? For example, if the x-intercepts of a parabola are (-3,0) and (5,0) can you sketch the graph? Why or why not? NO! You can NOT determine whether it opens up or down.

4
**What do you Need to Sketch a Parabola?**

Can you sketch a parabola if you only know where its x-intercept and y-intercept are? For example, if the x-intercepts of a parabola are (-3,0) and (5,0) and the y-intercept is (0,-15), can you sketch the graph? Why or why not? YES! IMPORTANT: The vertex must lie on the line of symmetry. A third point helps determine whether it opens up or down.

5
**Sketching a Quadratics**

Find the y-intercept Sketch: y = 2x2 + 5x – 12 Pay attention to Symmetry 8 Factor to find the x-intercepts -6 6 Draw the Parabola -16

Similar presentations

OK

Sketching a Quadratic Graph Students will use equation to find the axis of symmetry, the coordinates of points at which the curve intersects the x-axis,

Sketching a Quadratic Graph Students will use equation to find the axis of symmetry, the coordinates of points at which the curve intersects the x-axis,

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Background free download ppt on pollution Ppt on history generation and classification of computer Ppt on national defence academy Ppt on guru nanak dev ji and guru Ppt on earthquake information Ppt on basic concepts of cost accounting Ppt on speed control of dc motor using pwm Ppt on bond length and energy Ppt on girl child infanticide Java ppt on inheritance