Page 368 - Algebra 1

Press and select 5:Intersection. At the prompt “First Curve?,” press
to select the first line. At the next prompt, “Second Curve?,” press to select the
second line. Use the and keys to move
the cursor near the intersection. At the prompt “Guess?,” press . The solution is
displayed as a decimal at the bottom of the screen.
5. Change to the x- and y-coordinates to fractions. Press [QUIT] to return
to the home screen. Press , and then press
1:>Frac. Press . Press , and then press
1:>Frac. Press .
Lab Practice
and and select
[Y] and and select
a. Use the trace feature to find the approximate intersection of y = -2x + 3 and y = 0.5x + 1.
b. Use the intersection feature to find the exact intersection of y = -2x + 3 and y = 0.5x + 1.
c. Use the graphing calculator to find the intersection of y = -2x + 2 and 3y - 4x = 12.
d. Use the intersection feature to find the exact intersection of y = - _3 x - 5 a n d y = _1 x + 5 .
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e. Use the graphing calculator to find the intersection of y = 4x - 1 and 2y + x = 2.
Lab 5 353