What is the rate in miles per gallon: gallons used: miles; 28 628.4 39 947.7 42 1020.6
1 answer:
Answer:
Step-by-step explanation:
What is the rate in miles per gallon:
gallons used: 28 39 42
miles; 628.4 947.7 1020.6
The answer is below
Solution:
A linear function is a function in the form:
y = mx + b; where y is a dependent variable, x is an independent variable, m is the rate of change of y with respect to x, and b is the initial value of y when x is zero.
From the table, we are given the gallon used to cover a distance in miles. To calculate the rate, we can select two points from the table. Using the points in the form (miles, gallons used): (628.4, 28) and (1020.6, 42) we get:
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Answer:
Step-by-step explanation:
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Answer:
x = 3
Step-by-step explanation:
It should NOT be "fight of the origin", rather "right of the origin".
Now let's move on to solve the question...
The x-intercept is found by setting the function equal to 0. Thus:
0 = x^3 - 9x
<em>Let's solve this using algebra:</em>
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<em>Hence, x = -3 and x = 3</em>
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The coordinate that is to the right of the origin is the positive one, so x = 3 is the x-intercept we are looking for.