semester exam review day 1

Front

What is the slope of a line that passes through the points (14, -8) and (7, -6)?

Back

The slope is -2/7.

Front

What is the RANGE of the graph represented by the inequality -3≤y<1?

Back

The RANGE is -3≤y<1.

Front

Is the graph a function?

Back

Yes, it is a function.

Front

Is the relation a function? Why?

Back

No, because the x-value 11 has two y-values paired with it.

Front

Solve for a in the equation A = pw.

Back

a = w/p.

Front

What is the definition of a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What does the term 'range' refer to in a graph?

Back

The range refers to the set of all possible output values (y-values) of a function.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the difference between independent and dependent variables?

Back

Independent variables are inputs (x-values), while dependent variables are outputs (y-values) that depend on the inputs.