Mathematics MCA Practice HGSA

Front

What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

How can you determine if a table of values represents a function?

Back

A table of values represents a function if each input (x-value) corresponds to exactly one output (y-value). If any x-value is repeated with different y-values, it is not a function.

Front

Solve for p: 2p + 10 = 24.

Back

p = 7

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always non-negative.

Front

Evaluate: -3|−2x−y| when x = −4 and y = 5.

Back

-9

Front

What does a scatterplot represent?

Back

A scatterplot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional axis.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatterplot, showing the trend of the data.

Front

What is the solution to the equation |2x – 4| = 6?

Back

The solutions are x = 5 and x = -1.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the change in y divided by the change in x (rise over run).

Front

What does it mean for a scatterplot to show a positive correlation?

Back

A positive correlation in a scatterplot means that as one variable increases, the other variable also tends to increase.