5 STAAR

Literal Equations

100

True or False:

It is ok to combine unlike terms for literal equations.

False

200

Solve A=1/2h(b₁+b₂) for b​₁​​​

b₁=2A-hb₂/h

300

Solve d/t=r for t

t=d/r

400

Solve E = IR for R

R=E/I

500

Solve I=PN/RN+A

N=IA/P-IR

Direct Variation

100

What does the "k" in y=kx mean?

Slope

200

If p varies directly as the cube of q, and p = 26 when q= 2, find p when q = 5.

p=1625/4

300

If y varies directly as x, and x = 9 when y = 15, find y when x = 33?

y=55

400

The cost of a pizza varies directly as the square of its radius. If a pizza with a 6 inch radius costs $8.00, how much should a pizza with an 11 inch radius cost?

$26.89

500

The weight of an object on Earth varies directly as the weight of the same object on the moon. A 300 pound object would weigh 48 pounds on the moon. How much would a 65 pound object weigh on the moon?

10.4 lbs.

Standard Form

100

What does "By" represent in Ax+By=C?

Rate 2

200

What does the "C" represent in Ax+By=C?

Total

300

What is the slope of the equation:

-2x-4y=4

-1/2x

400

Take the following equation from standard form to slope-intercept form: y= 

-2x-3y=30

y=-2/3x-10

500

Take the following equation from standard form to slope-intercept form: y= 

3x+4y=8

y=-3/4x+2

Systems of Equations

100

What is pressed in order after the calculator has graphed the equations? Fill in the blank

2nd, Trace, ?, Enter 3 times

5:intersect

200

Tickets for the school Math Competition cost $2 for students and $5 for adults. A total of 20 tickets were sold for $85. How many of the tickets were sold to students?

5 tickets

300

Marcy has a total of 16 five- and ten-dollar bills. She has a total of $110. How many five-dollar bills  and ten-dollar does she have? Put equation into standard form using the data below.

x-$5 bill

y-$10 bill

5x+10y=110

400

The perimeter of a rectangular field is 40 feet. The length is 8 feet longer than the width. What are the dimensions of the field? aka. (length and width)

Length: 14 feet

Width: 6 feet

500

A bus travels two different routes: the Green Route and the Blue Route. The routes are different lengths. 

On Monday the bus traveled the Green Route 6 times and the Blue Route 5 times, traveling a total of 52 miles.

On Tuesday the bus traveled the Green Route 12 times and the Blue Route 13 times, traveling a total of 119 miles.

What is the length of the Green Route in miles?

4.5 miles

Exponential Function

100

What is the term used for a line that gets microscopically close to a y-value but never touches?

Asymptote

200

What is the "a" represent in ab^x?

Initial Value

300

What is the horizontal asymptote in the equation below:

1(2)^x-4

-4

400

Is the statement and exponential function?

True or False:

y=3^x

True

500

A radioactive isotope has a half-life of 15 hours. The function f(x)=18(1/2)^x/15 can be used to find the amount, in grams, of the isotope that remains after x hours. Which statement about the graph of the function is true?

A. the graph lies below the x-axis.

B. The graph shows exponential growth. 

C. The graph intersects the y-axis at (0,18).

D. The horizontal asymptote is y=15.

C