Lesson 21 Rational Equations Part 2 with Polynomial Degree

Lesson 21 Rational Equations Part 2 with Polynomial Degree

Fill in the Blank

Solve for x type the number only.

 $x-1=\frac{x^2-4x+3}{x+2}$  

Multiple Choice

Solve for x, 

 $\frac{4}{4-x}=\frac{5}{4+x}$  

•  $\frac{4}{6}$  

•  $\frac{9}{4}$  

•  $\frac{4}{9}$  

• 4

Open Ended

Multiple Choice

Kiran jogs at a speed of 6 miles per hour when there are no hills. He plans to jog up a mountain road, which will cause his speed to decrease by r miles per hour. Which expression represents the time, t, in hours it will take him to jog 8 miles up the mountain road?

• $t=\frac{8-r}{6}$

• $t=\frac{8}{6+r}$

• $t=\frac{6+r}{8}$

• $t=\frac{8}{6-r}$

Multiple Choice

Write g(x) in the form

 $c+\frac{r}{x}$  

 $g\left(x\right)=\frac{x+10}{x}$  

•  $g\left(x\right)=x+\frac{10}{x}$  

•  $g\left(x\right)=1+\frac{10}{x}$  

•  $g\left(x\right)=x-\frac{10}{x+10}$  

•  $g\left(x\right)=1-\frac{1}{x+10}$  

Fill in the Blank

 $10=\frac{1+7x}{7+x}$  

Solve for x, write the number only.

Fill in the Blank

 $0.2=\frac{6+2x}{12+x}$  

Solve for x, write the number only.

Fill in the Blank

 $0.8=\frac{x}{0.5+x}$  

Solve for x, write the number only.

Fill in the Blank

 $3.5=\frac{4+2x}{0.5-x}$  

Solve for x, write the number only rounded to two decimal places.

Multiple Choice

A softball player has had 8 base hits out of 25 at bats for a current batting average of 825=.320.

How many consecutive base hits does she need if she wants to raise her batting average to .400?

• 3

• 4

• 5

• 1

Fill in the Blank

What is the degree of the polynomial function shown in the table?

Fill in the Blank

What is the degree of the polynomial function shown in the table?