What is the difference between the elimination method and graphing method? What is the difference between the substitution method and graphing method? Please help me I would appreciate it very much. Thank you

after 1 year: 221 deer

step-by-step explanation:

30% of 170 is 51. 170+51=221

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)