Download presentation

Presentation is loading. Please wait.

Published byHerbert Sutton Modified over 6 years ago

1
Graphs of Equations Finding intercepts of a graph Graphically and Algebraically

2
c b Intercepts Graphical Approach x-axis y-axis a d a, b, and c are x-intercepts ( y = 0) d is a y-intercept ( x = 0) Algebraic Approach x-intercept: Set y = 0 and solve for x y-intercept: Set x = 0 and solve for y

3
Example 1 Find the x-intercept(s) and y-intercepts(s) if they exist. -3 2 1.5 67 x-axis y-axis 1) 2) x-axis y-axis 3 4 Solution: x-intercept(s): x = -3, 1.5, 6 and 7 y-intercept(s): y = 2 Solution: x-intercept(s): Does Not Exist ( D N E ) y-intercept(s): y = 3

4
Example 2 Find the x-intercept(s) and y-intercept(s) of the equation x 2 + y 2 + 6x –2y + 9 = 0 if they exist. Solution: x-intercept(s): Set y = 0. x2 x2 + 6x + 9 = 0 ( x + 3) 2 = 0 x = - 3 Point ( -3,0) y-intercept(s): Set x = 0. y 2 –2y + 9 = 0 No Real Solutions No y-intercepts

5
The End

Similar presentations

© 2021 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google