the slope is -2 and the y-intercept is 12
Step-by-step explanation:
1. choose two ordered pairs from the table (x1,y1) and (x2,y2).
2. write down the slope formula
3. replace the xs and ys by their values
4. subtract
5. divide
1. to solve for the y intercept, choose any one of the ordered pairs
2. replace the letters by their values
3. multiply
Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
Let
c -----> the cost of some taxi journeys
n ----> the number of miles
we know that
The graph is a line
The equation of a line in slope intercept form is
where
m is the slope
b is the c-intercept (value of c when the value of n is equal to zero)
Observing the graph we have the points
(0,2.5), (5,5.5)
<em>Find the slope</em>
The formula to calculate the slope between two points is equal to
substitute the values
we have
-----> because the point (0,2.5) is the c-intercept
substitute in the equation of slope-intercept form
