Algebra And Functions

Question 0

Factoring quadratics

Answer 0

You need to find what two numbers multiplies to the last number and what numbers will also add to the middle number and the numbers need to be the same

x^2-3x-4= (x-4) (x+1)

-4 and 1 both multiplies to 4 and adds up to 3

Question 1

Difference of two squares

Answer 1

a^2 - b^2= (a+b) (a-b)

Question 2

P^-4=

Answer 2

1/p1/p1/p*1/p

Question 3

x^0=

Answer 3

1

Question 4

x^a/b=

Answer 4

b to the square root of x^a

Question 5

y^1/2=

Answer 5

Square root of y

Question 6

When multiplying expressions withe the same base you

Answer 6

Add the exponents

Question 7

When dividing expressions with the same base

Answer 7

Subtract the exponents

Question 8

When a number raised to an exponent is raised by another exponent

Answer 8

Multiply the exponents

Question 9

y= kx; x and y are

Answer 9

Directly proportional

Question 10

y= k/x; x and y are

Answer 10

Inversely proportional

Question 11

Increase by percent from a previous number is

Answer 11

x + %x

example
x + .20x which is equal to 1.20x

Question 12

Percent increase from an original number is

Answer 12

difference/original = x/100

Example origin cost was 12 now it’s 15
3/12=x/100. 12x=300. x=25