Quiz 1.1-1.3

Question 1

Distance Formula

Answer 1

square root of (x2-x1)^2+ (y2-y1)^2

Question 2

Midpoint Formula

Answer 2

(x1+x2/2 , y1+y2/2)

Question 3

Pythagorean Theorm

Answer 3

a^2+b^2=c^2

Question 4

Isosceles triangle

Answer 4

An isosceles triangle is a triangle with (at least) two equal sides

Question 5

Determine whether each point

lies on the graph of the equation.

Answer 5

plug in x and y and see if =

Question 6

how to find x and y intercepts

Answer 6

xint- plug zero in for y
yint- plu 0 in for x
check w/ calculator (value)

Question 7

How to test if there is symmetry over an axis

Answer 7

x-axis symmetry: replacing y with -y gives equivalent equation.
y-axis symmetry: replacing x with -x gives
equivalent equation.
origin symmetry: replacing x with -x and y
with -y gives equivalent equation.

Question 8

standard form of the equation of a circle

Answer 8

(x – h)^2 + (y – k)^2 = r^2

Question 9

slope formula

Answer 9

y2-y1/x2-x2

Question 10

point slope form

Answer 10

(y-y1)=m(x-x1)

Question 11

parallel lines

Answer 11

same slope different y int

Question 12

perpendicular lines

Answer 12

negative reciprocal slopes