Which chart would represent the function f(x)=-2x+6?
1 answer:
The graph that best represents the function in this case, will be given by evaluating x in the function sometimes to build the number of points needed to describe the straight line. In this case, the graphic is shown in the attached file
x= <span> 0 <span>1 2 3 4 5 6 7 8 9 <span> 10
</span></span></span><span><span> F(x)= 6 4 </span> 2 0 -2 -4 -6 -8 -10 -12 -14
</span><span>zero is at x = 3!!!</span>
x= <span> 0 <span>1 2 3 4 5 6 7 8 9 <span> 10
</span></span></span><span><span> F(x)= 6 4 </span> 2 0 -2 -4 -6 -8 -10 -12 -14
</span><span>zero is at x = 3!!!</span>
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Answer:
The costs of the plan are $0.15 per minute and a monthly fee of $39
Step-by-step explanation:
Let
x ----> the number of minutes used
y ----> is the total cost
step 1
Find the slope of the linear equation
The formula to calculate the slope between two points is equal to
we have the ordered pairs
(100,54) and (660, 138)
substitute
step 2
Find the equation of the line in point slope form
we have
substitute
step 3
Convert to slope intercept form
Isolate the variable y
therefore
The costs of the plan are $0.15 per minute and a monthly fee of $39