Question 22

T

Solving Radical Equations Graphically

Given the function f(x) = √6 +2x find x when f(x) = 4 using your graphing calculator. Then

follow the steps below to show the intersection graph on the computer. [Hint: Use the following

window on your graphing calculator: Xmin=-5, Xmax = 7, Ymin=-10, Ymax = 10]

1. Write the point of intersection as an ordered pair below. Round the value of a to two decimal

places as needed. If the point of intersection does not exist, enter DNE

2. Use the Line Tool to draw the Horizontal Line y = 4.

3. Use the Square Root Tool to draw f(x) = √6 +2x. To draw this function, first plot the point

furthest to the left, followed by one more point.

4. Use the Point Tool to identify the point of intersection if it exists.

√6 +2x = 4

-5

Point of Intersection:

4 -3

-2

-1

10+

9

8

7

6

5

4

3

ANT

2

1

-1

-2

3

4

-5

-6-

-7

-8-

-9

-10+

Clear All Draw:

2

3

4

5

6