99 POINTS AND IF CORRECT, WILL GIVE BRAINLYIST
2 answers:
Answer: The functions are both increasing.
The function for plan II has a greater unit rate.
The function for plan I has a greater y-intercept.
Step-by-step explanation:
According to the given question we have two functions.
Function 1.
Function 2.
Both are written in intercept form of linear equation , where m is the slope of line or rate of change of y w.r.t. x.
Slope of function 1. = 400
i.e. Unit rate = $400 per month
Slope of function 2. = 420
i.e. Unit rate = $420 per month
⇒The function for plan II has a greater unit rate.
As both has positive slopes.
∴ Both functions are increasing functions.
For y intercept , put x=0 in the functions.
The y-intercept of function 1 = $12000
The y-intercept of function 2= $11000
⇒The function for plan I has a greater y-intercept.
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The solution is about a distance-time graph. The interpretation of the graph is that it took the family 6 hours to travel a distance of 360 miles. Note that the distance is plotted on y-axis and time on the x-axis.
<h3>What is a distance-time graph?</h3>A distance time graph is a simple graph that shows the relationship between the time travelled the distance covered while doing do.
The slope-intercept form is
y= mx+b−⋯(1)
The y-intercept is 360
⇒b = 360; and m = −60
Substituting the value of m = −60
and b = 360
in (1) above,
⇒y = −60x +360
The x-intercept is
y = 0,
⇒0= −60x+360
hence, x=6
The y-intercept is
x=0
⇒y=−60(0)+360
⇒y=360
In conclusion, the x - intercept is the time in hours between Cincinnati and St. Loui: and
The y - intercept is the distance between Cincinnati and St. Louis.
Learn more about distance-time graphs at:
brainly.com/question/13877898
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