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AysviL [449]
3 years ago
8

If f(x) =2x²-x, find f(-4)-f(9)​

Mathematics
1 answer:
sergeinik [125]3 years ago
3 0
F(-4) = 36
f(9) = 153
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Dwayne hikes 60 miles in 3 days. At that rate, how many days does it take him to hike a total of 240 miles
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12 days. 60 is a quarter of 240. So, multiply 60 by 4 to get 240.

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A store charges $2.10 for a medium bag of fruit slices. Assuming that the rate stays the same, how much should the store charge
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Your question states: <span>A store charges $2.10 for a medium bag of fruit slices. Assuming that the rate stays the same, how much should the store charge for a large bag of the slices?

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The slope-intercept form of a line is:

y = mx + b

where m is the slope and b is the y-intercept.

Looking at the graph, we can see that the line intersects the y-axis at y = 7. So 7 would be our y-intercept.

To find the slope, we would divide the rise of the line by the run. Or m = rise/run. From looking at the graph, we can see that for every 1 unit the line moves in the x-direction, the line moves in the y-direction by 1 unit. Therefore, the rise would be 1 and the run would be 1. 1/1 = 1 so the slope of the line would be 1.

Plugging in 7 for b and 1 for m into the equation for the slope-intercept form, we get:

y = x + 7

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I hope you find my answer and explanation to be helpful. Happy studying.

3 0
3 years ago
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