
Because

is singular, we have

from which it follows that either

or

.
Answer:
Slope of a line represents the money billed per lesson length.
Step-by-step explanation:
Slope of a line defined as the the number that measures the steepness and it is usually denoted by m.
It is also states the gradient of a line or the change in variable of y to the change in variable of x.
As per the statement:
Slope of a line is 2/3.
Here x axis represents the lesson length in minute and y axis represents the money billed in dollars
Then;
Slope of a line represents the money billed per lesson length.
Answer:
P = -2600/3 t + 25600/3
P = -8200/3
Step-by-step explanation:
t is the time in years since 1990, so two points on the line are (5, 4200) and (8, 1600).
Using the points to find the slope:
m = (y₂ − y₁) / (x₂ − x₁)
m = (1600 − 4200) / (8 − 5)
m = -2600/3
Now writing the equation in point-slope form:
P − 4200 = -2600/3 (t − 5)
Converting to slope-intercept form:
P − 4200 = -2600/3 t + 13000/3
P = -2600/3 t + 25600/3
In 2003, t = 13:
P = -2600/3 (13) + 25600/3
P = -8200/3
Answer:
B is correct my guy. Hope this helps!
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