Question 24

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Solving Radical Equations Graphically

Given the function f(x)=√4-2x find x when f(x) = 8 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=-32, Xmax = 10, Ymin = -10, Ymax = 10]

1. Write the point of intersection as an ordered pair below. Round the value of x 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 = 8.

3. Use the Square Root Tool to draw f(x)=√4-2x. To draw this function, first plot the point

furthest to the right, followed by one more point.

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

√4-2=8

Point of Intersection:

1-30-29-28-d7-de-ás de 1-22-22-20-19-28-17-16-15-14-13-12-11-10

Clear All Draw:

104

tot

-8