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Find the numerical value of the expression $y=\frac{4}{x},\:x=1,\:x=2$

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 Solution

 Videos

Algebra 2 - Determine and describe the discriminant 5x^2 - x -1 = 0

https://www.youtube.com/watch?v=F3eTBxCnzvI

Tutorial How to find the difference between two rational expressions, ((x-2)/(x^2 -8x+12))-(3/(x-2))

https://www.youtube.com/watch?v=IqvMZFULWdo

Tutorial - Evaluating an expression with one variable ex 8, (-x^2 +1)/3; x = 3

https://www.youtube.com/watch?v=mCQunJV8kU4

Finding the implied domain of a function

https://www.youtube.com/watch?v=xorCl1264F4

How to find equivalent expressions by combining like terms and using the distributive property

https://www.youtube.com/watch?v=rHNY01R2VSQ

Find the value of x given a tangent line to a circle

https://www.youtube.com/watch?v=odurvHguzIg

 Function Plot

Plotting: $y=4$

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1

2

3

4

5

6

7

8

9

0



a

b

c

d

f

g

m

n

u

v

w

x

y

z

.

(◻)

+

-

×

◻/◻

/

÷

◻²

◻^◻

√◻

√

^◻√◻

^◻√

∞

e

π

ln

log

log_◻

lim

d/dx

D^□_x

∫

∫^◻

|◻|

θ

=

>

<

>=

<=

sin

cos

tan

cot

sec

csc

asin

acos

atan

acot

asec

acsc

sinh

cosh

tanh

coth

sech

csch

asinh

acosh

atanh

acoth

asech

acsch

 How to improve your answer:

 Main Topic: Numerical value of an algebraic expression

The numerical value of an algebraic expression is the result obtained by substituting the variables by a numerical value given.

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