Question

with a real zero of 0.2, does the graph touch or cross at the at the x-intercept

Answer 1

it touches if it is a second degree polynomial

Answer 2

by second degree u mean raised to power 2

Answer 3

yup because all second degree polynomials must have 2 zeros if it only has one then that zero is repeated meaning it will just touch and not cross

Answer 4

f(x)= (x-1/5)^2 (x-9)^3 thats the equation
and the question is
a) list the multiplicity and real zeros
b) state for each one whether it crosses or touches the graph at the x-intercept

Answer 5

that makes it a bit complicated

the real zero of x=0.2 is the same as x= 1/5
so for the part of the equation that this zero relates to is the (x-1/5)^2 so there will be a zero which is repeated twice at x=0.2 so the graph will touch

Answer 6

thanks but those it touch or cross at the the real zero of x=9