Search
Ask a question
0

Find the x-int(if possible), y-int and axis of symmetry of the quadratic function. a) y=f(x)=x^2-6x+9 b)y=g(x)=x^2-x-2 c) y=h(x)=2x^2+x-6 d) y=j(x)=9-x^2

i dont know how to solve these

1 Answer by Expert Tutors

Tutors, sign in to answer this question.
Brad M. | Professional Tutor: STEM plus Business, Acc'ting, Investment, EditingProfessional Tutor: STEM plus Business,...
4.9 4.9 (222 lesson ratings) (222)
0
Hello again, M -- Yint happens when x=0 ... a) Yint = 9 ... you may try the rest
 
Xint is when y=0 ... a) x^2 -6x +9 =0 factors (x-3)(x-3) => Xint=3 ... you may factor rest
 
axis of symm for y= ax^2 +bx +c is x= -b/(2a) ... a) axis is x= -(-6)/(2*1) ==> x=3 ... try rest :)