Algebra 1 State Test Prep

Algebra 1 State Test Prep

Solve the equation for y.

3x+6y=9

Simplify (2x+4)(x-3)

Write the exponential function for the problem.

An initial value of 89 that is decaying by 18%.

Multiple Choice

Which represents a function that has an initial value of 26 and a decay of 34 %?

• 26(0.34)^x

• 26(0.66)^x

What transformations have happened in this function?

f(x+2)-6

Multiple Choice

What is the function that represents this transformation?

Start at the solid line.

• f(x-3)

• f(x+3)

• f(x)-3

• f(x)+3

Open Ended

If Sandra charges $4.00 for a cup of ice cream and $0.37 for each ice cream, What function would represent the situation?

Remember it should look like y=mx+b.

Multiple Choice

Karen bought a car for $24,000. The value of the car depreciates by about 13% each year. Which function below can be used to find the VALUE of her car? 

•  $y=24000\cdot0.13^x$  

•  $y=24000\cdot87^x$  

•  $y=24000\cdot13^x$  

•  $y=24000\cdot0.87^x$  

Multiple Choice

Given the following table of values, construct the function that represents the sequence.

• y = 3(4)^x

• y = 3x + 4

• y = 4(3)^x

• y = 4x + 3

Multiple Choice

The amusement park charges $20 to get in plus $1.50 per ride. Which linear equation below represents this relationship.

• y=1.5+20x

• y=1.5x + 20

• y = 20x + 1.5

• y= 21.5x

Multiple Choice

Which function is linear?

• y = 2x + 4
• y = 2x² + 4
• y = 2x(4 − 3x)
• xy = 15

Multiple Choice

Graduates throw their graduation caps upwards at the end of their graduation ceremony.
The height of a graduation cap in the air after it is thrown can be modeled by the function 
y = -16t² + 16t + 4
where t is time in seconds, and y is the height of the cap in feet.
Complete the square to find the maximum height of the cap in feet.

• 16
• -8
• 8
• 4

Multiple Choice

Find the product. 
(m-8)(m-9)

• m²+17m-72
• m²-17m-72
• m²-17m+72
• m²-72

Multiple Choice

Solve the equation for y
4x+2y=16

• y=4x+16
• y=-2x-8
• y=2x+8
• y=-2x+8