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2 years ago

What is -5(2x + y - 4)

Mathematics

1 answer:

Dafna11 [192]2 years ago

5 0

Answer: $-10x-5y+20$

Step-by-step explanation:

Multiply each term in the parenthesis by -5:

$-10x-5y+20$

$-5*2x-5y-5*(-4)$

Calculate the Product:

$-5*2x-5y-5*(-4)$

$-10x-5y-5*(-4)$

Solution:

$-10x-5y+20$

Please mark brainliest if this helped you :)

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The function f(x) is shown in the graph.

anzhelika [568]

The function that describes the graph is an exponential function

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From the graph, we have the following highlights:

Initially, when x increases; y seem not to increase
Then, x and y increase at the same time
Finally, y increase and x seem not to increase

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2 years ago

What is x/2.6=2? and explain why and how you got your answer .

Gnesinka [82]

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3 years ago

How do you put f(8)=-1,f(6)=0 into point slop form?

Mademuasel [1]

Answer:

y + 1 = -1/2(x - 8)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate
y₁ - y coordinate
m - slope

Step-by-step explanation:

Step 1: Define

f(8) = -1 → Coordinate (8, -1)

f(6) = 0 → Coordinate (6, 0)

Step 2: Find slope m

Substitute [SF]: $m=\frac{0+1}{6-8}$
Add/Subtract: $m=\frac{1}{-2}$
Simplify: $m=\frac{-1}{2}$

Step 3: Write Function

Substitute into general form.

Point 1: y + 1 = -1/2(x - 8)
Point 2: y = -1/2(x - 6)

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