to find the axis of symmetry you must use the formula x=-b/2a which in (1. a=1 b=0 c=9)
1.x=-b/2a = o/1(2) 0/2 =0 your axis of symmetry would be 0 and to find out if it goes upward or downward you must plug in more numbers to get more cordinates
find the axis of symmetry and vertex of the function. tell whether it goes upward or downward.
1. y=-xsquared+9
2. y=-2xsquared=7x-21
1 answer
1 answer