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NISA [10]
2 years ago
15

Which of the following graphs represent the equation y-4=3(x-1)

Mathematics
2 answers:
Keith_Richards [23]2 years ago
7 0
First, you should put the equation into the format y = mx + b, like this:

y-4 = 3x-3
y = 3x-3+4 
y = 3x+1

Now we know that the equation intercepts the Y-axis on +1.

This is only true for D; so things point into the direction of D being the right one. To make sure we can try the equation for another point.

Like this:
y = 3*-1 +1
y = -3 + 1 = -2

Which also matches D.

Hence, the correct graph is D. :)
creativ13 [48]2 years ago
6 0
Y-4=3x-3

y=3x+1

Now we don't have the picture but all points must satisfy the y found above.

Of particular note are the x and y intercepts which will be easy to see.

The y intercept is when x=0, so the point (0,1) should be easy to see.  When the line crosses the y axis, y will equal 1.

The x intercept is when y=0, so the point (-1/3, 0) will be where the line crosses the x axis.

These two points will show you which is the correct graph.
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Write the following decimals in order from smallest to largest: .021, .12, .2, .02​
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The following decimals are in order from smallest to largest: .021, .02, .12, .2
8 0
3 years ago
Fatima wants to find the value of sine theta, given cotangent theta = four-sevenths. which identity would be best for fatima to
Olin [163]

By using trigonometric relations, we will find that:

sin(θ) = (√33)/7 = √(33/49)

<h3>How to find the value of the sine?</h3>

Remember that for a right triangle, we have the relations:

cos(a) = (adjacent cathetus)/(hypotenuse)

sin(a) = (opposite cathetus)/(hypotenuse).

Here we know that:

cos(θ) = 4/7

Then we can say that we have a triangle with an adjacent cathetus of 4 units and a hypotenuse of 7 units. Now we need to find the other cathetus.

opposite cathetus = √(7^2 - 4^2) = √33

Then we can write:

sin(θ) = (√33)/7 = √(33/49)

If you want to learn more about trigonometry.

brainly.com/question/8120556

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3 0
1 year ago
A portable CD player costs $48. How much is 25% of the cost
blsea [12.9K]

x = 48 \times .25
x equals 25% of the cost.
.25 equals 25%
Therefore x=12
The awnser is $12
7 0
2 years ago
Find a product between 1500 and 1700?
Nady [450]

<u>Product is basically a vocabulary word meaning multiply</u>. 1500 x 1700 gives you a huge number that is 2,550,000.

6 0
3 years ago
Solve for x. round to the nearest hundredth if necessary.
iris [78.8K]

Answer: x=11.47

Step-by-step explanation:

Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.

Therefore, you need to remember the following identity:

cos\alpha=\frac{adjacent}{hypotenuse}

Then, knowing that:

\alpha=55\°\\adjacent=x\\hypotenuse=20

 You need to substitute these values intocos\alpha=\frac{adjacent}{hypotenuse}:

 cos(55\°)=\frac{x}{20}

Now, you can solve for "x":

20*cos(55\°)=x\\x=11.471

Rounded to the nearest hundreth:

x=11.47

6 0
2 years ago
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