This equation takes the form y=mx+c.
however many minutes she uses, the base rate is 40.
y=mx+40.
c, 40 is the y intercept as it is when the number of miutes is 0.
there is no constant for m so we say it is 1. for every 1 minute used, the price goes up 1.
Answer:
y=2x-3
Step-by-step explanation:
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Answer:</h2>
The average rate of change in f(x) over the interval [1, 5] is -1
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Step-by-step explanation:</h2>
Hi! Let me help you to understand this problem. Here we have the following function:
We need to compute the Average Rate of Change (ARC) in over the interval . So <em>what is the average rate of change of a function? </em>In general, for a nonlinear graph whose slope changes at each point, the average rate of change between any two points is defined as the slope of that line through that two points. Here we have a linear function, so the average rate of change will be the slope of the line:
So:
This can also be calculated as:
The two possible answers are w = 3 and w = -1/5
These answers can be obtained through solving to the absolute value symbols.
<span>−2∣5w−7∣+9=−7 ---> subtract 9 from both sides
</span><span>−2∣5w−7∣= -16 ---> divide both sides by -2
</span>∣5w−7∣= 8
Now, because of the absolute value symbols, set the inside equal to 8 and -8 for the two answers.
5w - 7 = 8
5w = 15
w = 3
AND
5w - 7 = -8
5w = -1
w = -1/5
Answer:
What is a Perfect Square? A perfect square is a number which is generated by multiplying two equal integers by each other. For example, number 9 is a perfect square because it can be expressed as a product two equal integers being: 9 = 3 x 3.
Step-by-step explanation: