math tough assesment

Question 1

what does mx stand for in y=mx+b

Answer 1

the slope (gradient

Question 2

what does b stand for in y=mx+b

Answer 2

the y-intercept

Question 3

how do you find the gradient

Answer 3

x2-x1

Question 4

what does the first number stand for in 4n+X

Answer 4

the first number is the change in the sequence (the number isnt always 4 just an example

Question 5

what does the n stand for 4n+X

Answer 5

the number of the term so if its the 3rd term in a sequence n would be 3

Question 6

what does x stand for in 4n+X

Answer 6

the first term in a sequence subtracted by the first number in the nth term

Question 7

what does f stand for in f(x)=3x+2

Answer 7

the name of the function

Question 8

what does x stand for in F(x)=3x+2

Answer 8

the input or the domain

Question 9

what does the 2 numbers stand for in F(x)=3x+2

Answer 9

the function

Question 10

how do you find exact center of a line

Answer 10

x1+x2. y1+y2
———- ————-
2. 2

Question 11

what is the distance formula (finding C in Pythagoras )

Answer 11

_____________________________
__ / (x2-x1). +(y2-y1)
\/

Question 12

when are lines parellel

Answer 12

when they both have the same gradient

m1=m2

Question 13

when are lines perpindicular(intersecting to make a right angle

Answer 13

m1 times m2 = -1

Question 14

how do you find c

Answer 14

first find m then substitute one of the sets of coordinates and solve

Question 15

how do you solve inequalities

Answer 15

treat them like equations

Question 16

when do you flip the signs for inequalites

Answer 16

if you multiply or divide by negative numbers