Coordinate geometry

Question 1

y=mx+b, where m can be calculated by rise over run, the formula for which is

Answer 1

y2-y2/x2-x1

Question 2

if two lines are parallel then slopes are

Answer 2

equal

Question 3

if two lines are perpendicular then slopes are

Answer 3

negative reciprocals. m1m2=-1

Question 4

if y <= mx+c then what region is covered by the line?

Answer 4

its either on the line mx+c or below mx+c because y

Question 4

if y <= mx+c then what region is covered by the line?

Answer 4

its either on the line mx+c or below mx+c because y

Question 5

parabola formula?

Answer 5

y= ax^2 + bx + c; where a, b, and c are constants and a is not equal to 0

Question 6

If y= ax^2 + bx + c parabola has a is positive then what is shape of parabola?

Answer 6

parabola opens upward and the vertex is its lowest point

Question 7

If y= ax^2 + bx + c parabola has a is negative then what is shape of parabola?

Answer 7

parabola opens downward and the vertex is the highest point

Question 8

graph of equation for circle?

Answer 8

( x-a)^2 + (y-b)^2 = r^2

Question 9

vertex of hyperbola (tip of the hyperbola) intersection point - (h,k) formula

Answer 9

(h,k) = ( -b/2a , -d/4a)

where d = b^2-4ac