Semester Exam Review

Front

What is standard form in scientific notation?

Back

Standard form expresses numbers as a product of a number between 1 and 10 and a power of 10.

Front

Convert the concentration of an ion, 9.1 x 10^-6 g/L, to standard form.

Back

0.0000091 g/L.

Front

What indicates a proportional relationship in a graph?

Back

A proportional relationship is indicated by a straight line that passes through the origin.

Front

What does a scatterplot help predict?

Back

A scatterplot helps predict the value of one variable based on the value of another variable.

Front

How do you determine the best prediction from a scatterplot?

Back

Draw a trend line to estimate the value based on the relationship shown.

Front

What is the equation of a line in slope-intercept form?

Back

The equation is written as y = mx + b, where m is the slope and b is the y-intercept.

Front

Identify the slope in the equation y = -\frac{1}{2}x + 3.

Back

The slope is -\frac{1}{2}.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept represents the value of y when x is 0.

Front

Convert the concentration of hydroxide ions, 1.2 x 10^-5 g/L, to standard form.

Back

0.000012 g/L.

Front

What is a linear relationship?

Back

A linear relationship is a relationship that can be represented by a straight line on a graph.