The part of the graph that could be represented by the equation y = mx + c is from 0 to 5,000 lux. (Option A).
What is a linear graph?
A linear graph is a type of graph that represents a linear relationship between two variables.
The general equation of a linear function is given as;
y = mx + c
where;
- m is the slope of the line
- c is the y - intercept of the line
The equation of the form y = mx + c is a straight line. Based on the data given in the graph we can see that between 0 and 5,000 lux, the line is straight and shows direct proportion.