Question

The equation of the line of best fit is y= 25x+7.5. What does the y-intercept represent?

Answer 1

In the equation y=25x+7.5, the y-intercept is 7.5 and represents the value of y when x is zero.

Step-by-step explanation:

Understanding and interpreting the y-intercept is crucial for analyzing linear equations. In the equation y=25x+7.5, 7.5 is the y-intercept. It represents the starting value of y when x is zero, which is where the line crosses the y-axis. This could signify the initial value of a dataset before any changes occur in the independent variable (x). In certain contexts, the y-intercept may not be relevant if there is no meaningful interpretation for when x equals zero.

Answer 2

y= 25x+7.5

The general equation of a line is given as

y = mx + c

where m is the slope and c is the y-intercept

Comparing with the equation

the y intercept is 7.5