Answer:
The answer is below
Step-by-step explanation:
A linear function graph can be represented by:
y = mx + b; where m is the slope and b is the y intercept, x is the independent variable and y is the dependent variable.
a) From the graph we can see the graph passes through the point (0, 100) and (20, 400). Hence we can use the following formula to find the equation:
b) An example of real life linear function is the energy consumed per day in kWh. Let us assume 5 kWh is consumed each day by the person. Since the independent variable is the days, it would be on the x axis, while the dependent variable (energy consumed) would be on the y axis.
Answer:
what is the question I didn't get it please explain what we have to find
Step-by-step explanation:
Down because the slope is negative
The function is continuous
The equation of the circle is : 
+ 
+ 6.4
+ 4.2
= 3.84
<h3>Meaning of a Circle</h3>
A circle is a loci or a continuous line that equidistant from the center to any point on the line. it drawn starting from a point and ending on that same point.
The equation of a circle is an equation used to find points on a circle so the circle can be drawn with accurate measurement. it can also be used to find the missing points.
In conclusion, The equation of the circle is : + + 6.4 + 4.2 = 3.84
Learn more about equation of a circle: brainly.com/question/1506955
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