advanced 7th Unit4 Practice Test

Front

What is the function of temperature over time in a heating process?

Back

The function describes how the temperature of an object changes as it is heated over time, often represented graphically.

Front

How do you determine the time it takes for an object to reach a specific temperature?

Back

By analyzing the graph of temperature vs. time, you can find the point where the temperature reaches the desired value.

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

How do you identify the slope of a line from its equation?

Back

The slope is the coefficient of x in the equation of the line.

Front

What does it mean for a graph to increase at a varied rate?

Back

It means that the rate of increase is not constant; the slope of the graph changes over time.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x is zero.

Front

How can you determine the initial height of an object from a graph?

Back

The initial height is found at the starting point of the graph, where time is zero.

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables that can be solved simultaneously.

Front

How do you find the solution to a system of equations graphically?

Back

The solution is the point where the graphs of the equations intersect.

Front

What does it mean if a system of equations has no solution?

Back

It means that the lines representing the equations are parallel and never intersect.