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Katena32 [7]
3 years ago
13

Please help, I can't figure out where to plot my points.

Mathematics
1 answer:
bija089 [108]3 years ago
4 0

Answer:

Solution: (x, y) = (-1, 3)

Step-by-step explanation:

When graphing an equation written in slope-intercept form, it is usually convenient to plot the y-intercept, then use the value of the slope to work from there to find another point.

<h3>y = -x +2</h3>

The y-intercept is +2, meaning that the point (0, 2) is on the line. The coefficient of x is -1, so the line will go down 1 unit (-1) for each unit to the right. Conversely, it will go up one unit for each unit to the left. Thus points (1, 1) and (-1, 3) are both on this line.

You can continue in like fashion to find other points on the line. If you're drawing the graph by hand, you may want points that are 5 or more units apart, so you might choose one that is right 5 and down 5: (5, -3).

<h3>y = 4x + 7</h3>

As with the other equation, it can be convenient to start with the y-intercept, (0, 7). The slope of 4 tells you the line goes up 4 units for each unit to the right. That makes the point (1, 11) be a point on the line. However, it is beyond the edge of the graph you're given.

So, it will work better to go the other way: 1 unit left and down 4 units to (-1, 3) or (-2, -1). You may have noticed that the point (-1, 3) is on both lines, hence is the solution to the system.

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The number of cows on a farm increased by 60. Because of better food, the amount of milk from each cow went up from 12.8 liters
attashe74 [19]

Answer:

Step-by-step explanation:

Number of cows increased=60

Old quality of milk consumed=12.8litres

New Increase in milk consumed=15litres

Therefore the number of cows in the farm if the quality of milk is 1340litres=y

Therefore, 1cow =15litres

y cows= 1340litres

Crossmultiply:

15litres×ycows=1340litres

Make y the subject of formula

y= 1340÷15

y=89.33cows

Therefore,the number of cows on the farm if farmer gets 1340litres of milk would be 89cows.

6 0
3 years ago
I'm not sure if I am right and just want to make sure I got the right answer
djyliett [7]

Answer:

The answer is 9

Step-by-step explanation:

The answer is 9

7 0
2 years ago
PLEASE HELP!!!!!!
quester [9]

B

First you have to change 2 1/2 into 5/2

To multiply fractions use the method
Keep Change Flip

5/2 x 3/1 =15/2

Which simplifies to 7 1/2
6 0
3 years ago
Read 2 more answers
If angle A is 4x+2 and angle B is 11x, what is the value of x? (round to the nearest tenth)
tatyana61 [14]

Answer: 13.6 or 9.2

Step-by-step explanation:

5 0
1 year ago
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Is the circumference of all circles about 3 times greater than their diameters. and why?
stira [4]

Answer:

<h2>Yes the circumference is about times greater than their diameters</h2>

Step-by-step explanation:

We will approach this problem by doing a check

Say the diameter of a circle is 4 cm

Hence the radius is 3 cm

We know that the circumference is C=2\pi r

C=2*3.142*2= 12.57cm

The circumference is about 3 time bigger than the diameter

Let us try another case say the diameter is 6 cm

The radius is 3 cm

C=2*3.142*3= 18.85cm

8 0
3 years ago
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