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agasfer [191]
3 years ago
9

Lines

Mathematics
2 answers:
kirill [66]3 years ago
8 0

Answer:

line r: y=-2x-2

line s: -2x+1

lime t: -2x+3

Step-by-step explanation:

every slope must be -2 since that's stated in the question

to find b in y=mx+b, you substitute 0 for x and the y coordinate when x is 0 into the equation (for example for slope r, when x is 0 then y is -2, so -2=-2(0)+b) then solve for b (-2=-2(0)+b is -2=b)

basically, b is the y component when x is 0

Amanda [17]3 years ago
3 0

Answer:

line r: y=-2x-2

line s: -2x+1

lime t: -2x+3

Step-by-step explanation:

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For the data set shown in the scatterplot, what is the BEST approximation of the y-intercept for the line of best fit? A) 0 B) 5
Angelina_Jolie [31]

Answer:

  • C) 125

Step-by-step explanation:

If you add a line of best fit, its extension is likely to intersect the y-axis between 200 and 100 but closer to 100.

The best estimate is choice C) 125

4 0
3 years ago
My answers were wrong please help
ValentinkaMS [17]

Answer:

from the top down

y=7

y=4

y=3

y=4

y=7

Step-by-step explanation:

y=(-2)²+3

y=4+3

y=7

y=(-1)²+3

y=1+3

y=4

y=0²+3

y=0+3

y=3

y=1²+3

y=1+3

y=4

y=2²+3

y=4+3

y=7

hope this helps :)

3 0
3 years ago
Lisa spends 1/4 of her earnings on rent and 1/5 of her earnings on food. Let m stand to
Zarrin [17]

Answer:

Step-by-step explanation:

Let her total earnings be m

Rent = 1/4m

Food = 1/5m

Amount left = m - 1/4m - 1/5m

Amount left = (20m - 5m - 4m)/20

Amount left = 11m/20

4 0
3 years ago
Amy drops a ball from an initial height of 30 feet above the ground. After how many seconds with a ball reach the ground? Roger
Vitek1552 [10]

Answer:

Option 2. 1.4 seconds

Step-by-step explanation:

As we know when a ball is dropped from a height then we apply the formula

h=ut+\frac{1}{2}gt^{2}

Here h = height from the ground

u = initial speed of the ball

t = time taken to reach the ground

g = acceleration due to gravity

Now we put the values of these parameters

h = 30 feet ≅ 9.144 met.

u = 0

g = 9.8 met/sec²

9.144 = 0 + 1/2×9.8×t²

9.144 = 4.9×t²

t² = 9.144÷4.9

t² = 1.87

t = 1.37 ≅ 1.4 seconds

Therefore option 2 is the answer.

4 0
3 years ago
Read 2 more answers
Find an equation for the slope m=5/9 and which goes through the point (-45,5). Write Answer in y=Mx+b
Setler [38]

Answer:

y = ( 5 / 9 )x + 30

Step-by-step explanation:

y - y1 = m ( x - x1 )

m = 5 / 9

y - ( 5 ) = ( 5 / 9 ) [ x - ( - 45 ) ]

y - 5 = 5 / 9 ( x + 45 )

y - 5 = ( 5 / 9 )x + 25

y = ( 5 / 9 )x + 30

7 0
3 years ago
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