algebra 1 STAAR review

Front

What do the terms 'At most' and 'No more than' indicate in inequalities?

Back

They indicate that the value is less than or equal to a certain number, represented by ≤.

Front

What does a negative correlation in a scatterplot indicate?

Back

It indicates that as one variable increases, the other variable decreases.

Front

What is the general form of an exponential decay function?

Back

A = A₀ * (1 - r)ⁿ, where A₀ is the initial amount, r is the rate of decay, and n is the number of time periods.

Front

How do you solve for x in the equation x = by + v?

Back

To isolate x, you can rearrange the equation as needed, but it is already solved for x.

Front

What does a scatterplot with no association look like?

Back

It shows no clear pattern or trend between the two variables.

Front

What is the difference between exponential growth and decay?

Back

Exponential growth increases over time, while exponential decay decreases over time.

Front

What does the symbol '≤' mean in an inequality?

Back

It means 'less than or equal to'.

Front

If a car's value decreases as its age increases, what type of correlation is this?

Back

This is a negative correlation.

Front

What is the formula for exponential growth?

Back

A = A₀ * (1 + r)ⁿ, where A₀ is the initial amount, r is the growth rate, and n is the number of time periods.

Front

How can you identify a scatterplot that represents a negative correlation?

Back

The points will slope downwards from left to right.