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worty [1.4K]
3 years ago
11

Write the equation for the line graphed below.

Mathematics
2 answers:
Vesnalui [34]3 years ago
7 0

Answer:

y=1/2x-1

Step-by-step explanation:

The point of (0, -1) goes up 1 and 2 over to get to the next dot and the y-intercept is (0,-1) because that's where it hits the y.

alexandr1967 [171]3 years ago
7 0

Answer:

y=\frac{1}{2}x-1

Step-by-step explanation:

To find this answer in slope intercept form, you need to find the slope of the line as well as the y intercept. The line is clearly visible crossing the y axis at (0,-1), meaning that the y intercept is -1. The slope is also easy to find, because the line rises 1 unit for every two it moves to the left. This means that the slope is \frac{1}{2}. Therefore, the equation is y=\frac{1}{2}x-1. Hope this helps!

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Simplify 12st over 4t
soldier1979 [14.2K]
\huge{\frac{12st}{4t}=\frac{12s}{4}=\boxed{3s}
7 0
3 years ago
If £25 = 800 rubles, how many £ are in 992 rubles?​
katen-ka-za [31]

Answer:

£31

Step-by-step explanation:

25 = 800

x = 992

x = 992 x 25 / 800 = 31

3 0
2 years ago
Length of the base of the given triangle is (x+3) units and the perpendicular height is (x-1)units. If the area of the triangle
Lana71 [14]

Step-by-step explanation:

the area of a triangle is

baseline × height / 2

so, in our case we know this is 10 :

(x+3)(x-1)/2 = 10

(x+3)(x-1) = 20

x² - x + 3x - 3 = 20

x² + 2x - 23 = 0

that is exactly the provided equation. so, yes, x satisfies it.

the general solution to a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -23

x = (-2 ± sqrt(2² - 4×1×-23))/(2×1) =

= (-2 ± sqrt(4 + 92))/2 = (-2 ± sqrt(96))/2 =

= (-2 ± sqrt(16×6))/2 = (-2 ± 4×sqrt(6))/2 =

= -1 ± 2×sqrt(6)

x1 = -1 + 2×sqrt(6) = 3.898979486... ≈ 4

or using sqrt(6) ≈ 2.45

= -1 + 2×2.45 = -1 + 4.9 = 3.9 ≈ 4

x2 = -1 - 2×sqrt(6) = -5.898979486... ≈ -6

or using sqrt(6) ≈ 2.45

= -1 - 2×2.45 = -1 - 4.9 = -5.9 ≈ -6

x2 would give us negative lengths for the triangle, which does not make sense.

so, x = 4 is our solution.

and that makes the height x-1 = 4-1 = 3 units.

7 0
2 years ago
Plz help me thanks so much for helping
11111nata11111 [884]

Answer:

total cost = 351.33

Step-by-step explanation:

The tax is found by multiply the cost times the tax rate

tax = 334.60 * .05

tax =16.73

Add the tax to the cost of the item to get the total cost

total cost = 16.73 + 334.60

total cost = 351.33

6 0
3 years ago
Really really need help on ONE math graph question.
Nat2105 [25]
The answer is      -3.5, 0.5
7 0
3 years ago
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