Answer:
Step-by-step explanation:
An equation of a line is given , where m is the gradient or
The rise indicates the change in value of y (vertical change in the graph).
The run indicates the change in value of x (horizontal change in the graph).
Let point 1 of the graph be (x,y) = (0,-34) and point 2 be (x,y) = (20,0).
Substitute point 1 into the graph to get the constant c.
∴ The equation of the line is,
Answer:
Part 1) The linear equation is
Part 2) if he has 90 protein bars left, then 52.5 days have passed
Step-by-step explanation:
we know that
The linear equation in slope intercept form is equal to
where
y is the number of protein bars left
x is the number of days
m is the slope or unit rate
b is the y-intercept or initial value
In this problem we have
The slope is equal to
----> is negative because is a decreasing function
substitute
---> linear equation that represent this situation
If he has 90 protein bars left
so
For y=90
substitute in the linear equation and solve for x
therefore
if he has 90 protein bars left, then 52.5 days have passed