The y-intercept represents the distance between city A and house which is 220 units.
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have an equation that determines Jack's distance from City A t hours after leaving his house:
D = 220 - 55t
To find the y-intercept plug t = 0
D = 220 units
The y-intercept is (0, 220)
The equation represents the distance as Jack is closer to city A the distance between Jakie and city A is decreasing.
At t = 0
D = 220 units
When Jack is at home the distance between city A and the house is 220 units.
Thus, the y-intercept represents the distance between city A and house which is 220 units.
Learn more about the linear equation here:
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