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tiny-mole [99]
3 years ago
12

Write an equation for the direct variation (y varies directly with x) if y=12 when x=4.

Mathematics
1 answer:
Olegator [25]3 years ago
6 0
Hdhssuejzzsxfffdfggfds
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Work out an equation of the straight line with gradient 3 that passes through the point with coordinates (2, 4).
Gnom [1K]

Answer:

The answer is

\huge \boxed{y = 3x - 10}

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (2, 4) and the slope is 3

The equation of the line is

y - 4 = 3(x - 2) \\ y + 4 = 3x - 6 \\ y = 3x - 6 - 4

We have the final answer as

y = 3x - 10

Hope this helps you

3 0
4 years ago
A cylinder, cone, and sphere are shown below. The three figures have the same radius. The cylinder and cone have the same height
Mice21 [21]
I’m just trying so much better to talk now but it’s just a good 256
8 0
2 years ago
In ΔKLM, m = 5.9 cm, k = 7.1 cm and ∠L=72°. Find the length of l, to the nearest 10th of a centimeter.
Elena L [17]

Answer:

7.7

Step-by-step explanation:

a ^2+b^2=c^2−2bccosA

l^2 = 5.9^2+7.1^2-2(5.9)(7.1)cos 72

4 0
3 years ago
What is the domain of the given function? <br> {(3,-2), (6, 1), (-1,4), (5,9), (-4,0)}
grandymaker [24]

Answer:

D = { -4,-1,3,5,6}

Step-by-step explanation:

The domain is the x values  or the inputs

D = { 3,6,-1,5,-4}

We normally put them in order from smallest to largest

D = { -4,-1,3,5,6}

4 0
3 years ago
Austin is baking apple pies and apple cakes. Each pie takes three times the number of apples as each cake. He plans to make 2 pi
Setler79 [48]
The answer is A cause the X represents the number of apples used in 1 cake and the 3 represents how much more apples it takes for the pie than the cake .
7 0
3 years ago
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