What shape is this graph?

a) circle
b) ellipse
c) hyperbola
d) parabola

i graphed the equation but don’t fully understand. my guess is that it’s a parabola? can someone explain please? just need some help. thank you!

it's a trigonometric function(also called circular functions).

Step-by-step explanation:

Graph of trigonometric functions look like ripples They can be written as

or

where a, b, c and d are factors

you can try those formulas in https://www.geogebra.org/graphing

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two