Cumulative Review for STAAR

Find the solution to the system of equations.

3x + 2y = 16

7x + y = 19

• (-2,5)

• (-2,-5)

• (2,-5)

• (2,5)

A bacteria sample starts with 1 cell and triples every 15 minutes.

b=___

 $\frac{1}{4}x-2y=12$  Write the given equation in slope-intercept form.

•  $y\ =-\frac{1}{8}x+6$  

•  $y=6x-8$  

•  $y=\frac{1}{8}x-6$  

•  $y=8x-\frac{1}{6}$  

Find the slope of the line that passes through the given points (2, -10) and (-3, 14).

• $-\frac{24}{5}$

• $4.8$

• $-\frac{12}{17}$

• $24$

What is the solution to this system?

y = 2x + 1

y = 4x - 1

Write your answer as (x,y)

 $f\left(x\right)=7^x$  
What is the a value? Use your foldable. If you don't know, try graphing it.
a=______

The data shown in the table above gives the value of a new truck's depreciation over the course of many years. What is the equation that best models this data?

 $3x-7=4\left(x+12\right)-10$  

Find the value of x that satisfies the given equation.

 $6x^2-11x-10$  

The given trinomial was factored.

Which of the following could be one of the factors?

• (3x-2)

• (2x+5)

• (3x+2)

• (2x-10)