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Arte-miy333 [17]
3 years ago
6

Find the rate of change of y=2x+4

Mathematics
1 answer:
ANTONII [103]3 years ago
8 0

Answer:

<h3>2</h3>

Step-by-step explanation:

Since this is a linear function, the rate of change is the same as the slope of the function.

Rate of change is a ratio that compares the difference of two outputs and the difference of two inputs of a function. It is the \frac{rise}{run}, the Δy/Δx (the symbol "Δ" is delta, and means change or difference).

In the case of this function, the slope and rate of change are the same because it is linear, but they are not the same in quadratic or exponential functions because the rate of change is not constant.

The general equation for a linear function is y=mx+b, where "m" is the slope and "b" is the y-intercept, or initial value. In the equation y=2x+4, the "m" value is 2, so the rate of change is 2.

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Jericho takes 3 tests in one month. The number of correct answers and the total
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A projector was sold after allowing 10% discount on the marked price and levying 13% VAT .If the selling price of the projector
Tom [10]

The marked price of the projector is $50,000.

<h3>What is the marked price?</h3>

The price of the projector after the discount can be represented with:

(100 - 10%)x - 90%x = 0.90x

Where x is the marked price

The price of the projector after the VAT is : (1.13) x 0.90x = 1.02x

Difference in price = 1.02x - 0.90x = 5850

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x = 5850 / 0.12

x = $50,000

To learn more about how to calculate discounts, please check: brainly.com/question/26061308

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8 0
1 year ago
Evaluate the following function for x = 4: h(x) = 7x + 15.
Lesechka [4]

Answer:

43

Step-by-step explanation:

If x = 4, then plug in an x in the given equation

7(4) + 15 = 43

Therefore h(4) = 43

I hope this helps! :)

7 0
2 years ago
An architect designed this scale model of a warehouse for a building contractor.
Annette [7]

tl;dr Answer is C

Here we will have to calculate 3 different areas separately.

When calculating the area of the triangle we will use the formula

A = (h*b)/2  

A = Area

h = height

b = base

To find the height we do X - Z  

23 - 15 = 8 ft

To find the base we do Y - W

19 - 13 = 6 ft

Using the formula above we can now solve for A  

A = (8*6)/2

A = (48)/2

A = 24 sq ft

Now we solve the two rectangles using the formula  

A = wl

w = width

l = length

We will calculate the area of the left most rectangle first.

We know the length of the rectangle because it's Y - W and we are given the width of the triangle.

w = 15 ft

l = 6 ft

A = 15*6

A = 90 sq ft

Second Rectangle has the width of X and length of W

w = 23 ft

l = 13 ft

A = 23 * 13

A = 299 sq ft

Now we add all the areas to give us the total area of the warehouse.

24 + 90 + 299 = 413 sq ft

Therefore, the answer is C

5 0
2 years ago
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