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what's an algebraic expression

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Identify direct variation and inverse variation

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Q. what's an algebraic expression

Identify Variables and Operations: To write an algebraic expression, you need to know the variables and what operations are being used. $\newline$ For example, if you have $3$ times a number $x$ , plus $5$ , the algebraic expression would be $3x + 5$ .
Example: $3x + 5$ : Another example could be the difference of a number $y$ and $7$ , which would be written as $y - 7$ .
Example: $y - 7$ : Algebraic expressions can also include exponents and parentheses, like $2(x + 3)^2$ , which means $2$ times the square of the sum of $x$ and $3$ .
Include Exponents and Parentheses: Remember, algebraic expressions don't have an equals sign; that's an equation. So something like $4z = 8$ isn't an expression, it's an equation.

More problems from Identify direct variation and inverse variation

Question

In a direct variation,

y = 6

x = 2

. Write a direct variation equation that shows the relationship between

x

y

\newline

Write your answer as an equation with

y

first, followed by an equals sign.

Posted 2 months ago

Question

y

varies directly with

x

y = 12

x = 6

y

x = 4

\newline

Write and solve a direct variation equation to find the answer.

\newline

y =

Posted 1 month ago

Question

Which equation shows inverse variation?

\newline

\newline

(\frac{x}{36}) = y

\newline

yx = -74

Posted 2 months ago

Question

y

varies inversely with

x

y = 1

x = 4

y

x = 2

\newline

Write and solve an inverse variation equation to find the answer.

\newline

y =

Posted 1 month ago

Question

What is the value of

\frac{x^{2}}{y^{4}}

x=8

y=2

Posted 10 days ago

Question

(x+4)(2 x-a)=0

\newline

In the given equation,

a

is a constant. If the equation has the solutions

x=4

x=-4

, what is the value of

a

Posted 2 months ago

Question

(2 x+5)(-m x+9)=0

\newline

In the given equation,

m

is a constant. If the equation has the solutions

x=-\frac{5}{2}

x=\frac{3}{2}

, what is the value of

m

Posted 2 months ago

Question

(4 x+3)-(5 x-7)=a x+b

\newline

In the given equation,

b

is a constant. What is the value of

b

Posted 1 month ago

Question

y=\frac{29}{8} x-\frac{2}{3}

\newline

The given equation is graphed in the

x y

-plane. What is the slope of the line?

Posted 1 month ago

Question

a t^{2}+\frac{7}{2} t-4=0

\newline

The given equation has solutions at

t=-8

t=1

. What is the value of the constant

a

Posted 1 month ago