Resource Sampler - Pearson
Resource Sampler - Pearson
Resource Sampler - Pearson
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5-4 Solve It!<br />
Can you always use<br />
slope-intercept<br />
form? Try it here,<br />
and then learn an<br />
easier way in the<br />
lesson.<br />
The red line shows the altitude of a hot-air balloon during its linear<br />
descent. What is an equation of the line in slope-intercept form? (Hint:<br />
What is the altitude of the balloon when it starts its descent at x 5 0 ?)<br />
y<br />
Altitude (meters)<br />
680<br />
640<br />
600<br />
560<br />
520<br />
(5, 640)<br />
(15, 620)<br />
(35, 580)<br />
(45, 560)<br />
namic Activity<br />
nt-Slope Form<br />
a Line<br />
0 10 20 30 40 50<br />
Time (seconds)<br />
x<br />
5-4 Lesson Quiz<br />
1. Do you UNDERSTAND? A line passes through (22, 5) and has<br />
slope 1 3<br />
. What is an equation of the line in point-slope form?<br />
2. What is the graph of the equation y 1 3 5 2(x 1 3)?<br />
3. What is an equation in point-slope form of<br />
the line shown below?<br />
4<br />
(4, 1)<br />
y<br />
4<br />
2<br />
2 O 2<br />
2<br />
4<br />
x<br />
4<br />
(4, 3)<br />
Answers<br />
Solve It!<br />
y 522x 1 650<br />
Lesson Quiz<br />
1. y 2 5 5 1 (x 1 2)<br />
3<br />
2.<br />
y<br />
4<br />
1<br />
3. y 2 1 52 (x 1 4) or<br />
2<br />
1<br />
y 1 3 52 (x 2 4)<br />
2<br />
4<br />
2 O 2<br />
2<br />
4<br />
x<br />
4<br />
14<br />
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies<br />
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38<br />
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