ALGEBRA 1 STAAR NEW ONLINE PRACTICE TEST PART A

Write a simplified expression that is equivalent to

$$\left(3xy^2\right)\left(4xy\right)$$

The function $$f\left(x\right)=x$$  was transformed to form  $$g\left(x\right)=f\left(x\right)+7$$ .

Which statement is true about the graphs of f and g?

An artist bought a set of 12 paintbrushes that contained  $$x$$  small paintbrushes and  $$y$$  large paintbrushes. The number of small paintbrushes in the set was 5 times the number of large paintbrushes in the set. 

Which system of equations can be used to find the numbers of small paintbrushes and large paintbrushes in the set?

Graph the following exponential function:

$$f\left(x\right)=6\left(\frac{2}{3}\right)^x$$

Label the following parts of a quadratic function.

For quadratic function f , the solutions to the equation  $$f\left(x\right)=0$$ are  $$x=-\frac{3}{2}$$   and  $$x=\frac{5}{7}$$  

Which function could represent  $$f$$ ?

A store manager adjusts the price of an item each week that the item goes unsold. The price of the unsold item, in dollars, after  $$x$$   weeks can be modeled by the exponential function  $$f\left(x\right)=500\left(.80\right)^x$$

Choose the correct answer from each drop-down menu to complete the sentences.

The initial price of the item before the store manager made any adjustments was​ (a)   .

The price of the item ​ (b)   at a rate of ​ (c)   each week.

Which expression is equivalent to:

$$\sqrt[]{72}$$