Math Is Fun Forum

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Analyze h(x)

Given h(x) = (-32x^2)/(130)^2, do A to C.

A. Find x when h(x) = 0.

The set up us this:

0 = (-32x^2)/(130)^2

You say?

B. Find domain of h algebraically

To find domain, I must repeat my work for part A.

You say?

C. Find range of h algebraically

How is this done algebraically?

D. Find all intercepts

To find the x-intercept(s), I must let h(x) = 0.

Yes?

To find the y-,intercept(s), I must let x = 0.

Yes?

What do you really say?

Bob

Administrator

Registered: 2010-06-20

Posts: 10,640

Re: Analyze h(x)

A ok.

Have a look at the graph for the rest.

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Re: Analyze h(x)

A ok.

Have a look at the graph for the rest.

Bob

I will use a graph.

KerimF

Member

From: Aleppo-Syria

Registered: 2018-08-10

Posts: 256

Re: Analyze h(x)

A ok.
Bob

Ok?!
I see him just replacing h(x) with a zero:
0 = (-32x^2)/(130)^2

I guess he needs to go on a bit further to deduce the value of x.

---

Every living thing has no choice but to execute its pre-programmed instructions embedded in it (known as instincts).
But only a human may have the freedom and ability to oppose his natural robotic nature.
But, by opposing it, such a human becomes no more of this world.

KerimF

Member

From: Aleppo-Syria

Registered: 2018-08-10

Posts: 256

Re: Analyze h(x)

Given h(x) = (-32x^2)/(130)^2, do A to C.
B. Find domain of h algebraically

I expected to read instead:
B. Find domain of x algebraically

---

Every living thing has no choice but to execute its pre-programmed instructions embedded in it (known as instincts).
But only a human may have the freedom and ability to oppose his natural robotic nature.
But, by opposing it, such a human becomes no more of this world.

KerimF

Member

From: Aleppo-Syria

Registered: 2018-08-10

Posts: 256

Re: Analyze h(x)

Given h(x) = (-32x^2)/(130)^2, do A to C.
D. Find all intercepts

To find the x-intercept(s), I must let h(x) = 0.
Yes?

To find the y-,intercept(s), I must let x = 0.
Yes?

Both correct.

Last edited by KerimF (2024-03-17 00:45:33)

---

Every living thing has no choice but to execute its pre-programmed instructions embedded in it (known as instincts).
But only a human may have the freedom and ability to oppose his natural robotic nature.
But, by opposing it, such a human becomes no more of this world.

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Re: Analyze h(x)

Given h(x) = (-32x^2)/(130)^2, do A to C.
D. Find all intercepts

To find the x-intercept(s), I must let h(x) = 0.
Yes?

To find the y-,intercept(s), I must let x = 0.
Yes?

Both correct.

Perfect. I can take it from here.