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Romashka-Z-Leto [24]
2 years ago
13

The graph of a linear function is shown on the grid

Mathematics
1 answer:
monitta2 years ago
4 0

Answer: Choice A

y + 1 = -3(x+2)

=============================

Explanation:

Let's look through the answer choices.

Choices C and D show that the point (2,1) is on the line. But the graph does not show this. So we can rule out choices C and D.

With choice A, the slope is negative and choice B has a positive slope.

The answer must be choice A because the line is going downhill as we move from left to right.

--------------

A common method is to pick two points on the line and compute the slope using the slope formula

m = (y2-y1)/(x2-x1)

Once you know the slope, you would use point slope form

y - y1 = m(x - x1)

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An electrician sent Bonnie an invoice in the amount of 'a' dollars for 6 hours of work that was done on Saturday. The electricia
Mazyrski [523]

Answer:

(a-f)/6 = r

Step-by-step explanation:

The total Bonnie must pay is the weekend fee plus the hourly rate times the hours worked

Cost = weekend fee * hourly rate* hours

hours = 6

weekend fee =f

hourly rate = r

Cost = a dollars

Substituting in what we know

a = f+ 6r

We want to solve for r

Subtract f from each side

a-f =f-f +6r

a-f = 6r

Divide each side by 6

(a-f)/6 = 6r/6

(a-f)/6 = r

4 0
3 years ago
Hamburger sells for 3 pounds for 6$. If Samantha buys 10 pounds of hamburger, how much will she pay?
Afina-wow [57]
She will pay 20$ for 10 pounds of hamburger
3 0
3 years ago
Read 2 more answers
John is building a rectanglular parking lot. The area of the lot is A(x) = -2x^2 + 200x.
stealth61 [152]

Answer:

40, 2000, 50

Step-by-step explanation:

I am not sure, but if you find any other answer, you can use this numbers

4 0
2 years ago
What is the equation of the parabola, in vertex form, with focus at (1, -4) and<br> directrix x= 3?
Nezavi [6.7K]

Answer:

  D.  (y +4)² = -4(x -2)

Step-by-step explanation:

The directrix is a vertical line, and the focus is to the left of it. The parabola will open to the left.

The vertex is halfway between the focus and directrix, so is located on the same horizontal line as the focus, at ...

  x = (1 +3)/2 = 2

The focus to vertex distance is the difference in x-coordinates: 1 -2 = -1. This is the value of p in the form ...

  (y -k)² = 4p(x -h) . . . . . . . parabola with vertex (h, k)

The equation is ...

  (y +4)² = -4(x -2)

_____

<em>Additional comment</em>

Once you determine that the directrix is a vertical line, you know the equation will have a y² term. The only answer choice that has that is D.

5 0
2 years ago
Please help...
BARSIC [14]
6 7/15 - 4 3/10 = ?

Answer :
2 1/6 or 2 5/30
Step by Step :
convert to improper fraction
97/15 - 43/10
find the common denominator (30)
194/30 - 129/30
subtract from each other
194/30 - 129/30 = 65/30
change back to mixed number
2 5/30 or simplify to 2 1/6

7 0
3 years ago
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