 |
|---|
SELECT PAGE NO.
No Books/Pages Are Available |
SELECT PROBLEM NO. FOR THE PAGE |
| PAGE: 292 | SET: Exercises | PROBLEM: 1 |
The inequality is 
.
Add 
to each side.
Add 
to each side.
Divide each side by 
.
The inequality solution set is 
.
The inequality is 
.
Related quadratic equation is 
Find the intercepts.
Find the 
-intercept by substituting 
in 
.
Solve for 
.
or 
or
The -intercepts are 
,
.
Find the 
-intercept by substituting 
in .
-intercept is 
.
Find the vertex of above quadratic function 
.
Compare it to 
.
, 
and 
.
Since 
, then the parabola open upward.
-coordinate of vertex is 
.
Vertex 
.
Graph the quadratic equation .
Draw the coordinate plane.
Plot the intercepts and vertex.
Connect the plotted points.
Since the inequality symbol is 
, the solutions
are not included in the solution of the inequality.
The graph is above the -axis 
when 
or
.
The inequality solution set is 
.
.
|
"I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett |
|
"Your site is amazing! It helped me get through Algebra." Charles |
|
"My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease |
Simply chose a support option
  
|