# Maths

determine if this is a function?
y= x

1. 👍 0
2. 👎 0
3. 👁 93
1. Graph the Eq and draw a vertical line
through it. The line will intersect the
graph at only one point. Therefore, the Eq is a function; because it passed the vertical line test.

If you graph an X-parabola and perform
the vertical line test, the line will
intersect the graph at 2 points. There-
fore, the X-parabola is not a function;
because it does not pass the vertical
line test.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the xy plane with an acceleration ->a (vector) = (4.0ihat+ 3.0jhat)m/s^2. Assume t is in seconds. Determine the x component of velocity as a function of time t.

2. ### Algebra

The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −5 0 −1 1 3 g(x) g(x) = 2x − 7 Part A: Write a sentence to compare the slope of the two functions and show the steps

3. ### Math (Finite)

A calling card offers two methods of paying for a phone call. Method A charges \$0.02 per minute but has a \$0.6 connection fee. Method B charges \$0.045 per minute but has no connection fee. Write the equations that show the total

4. ### Math

1. Explain the advantages and disadvantages of both the substitution method and the elimination method for solving a system. Help please. The only reasons I can think of is because in substitution it might be more difficult cause

1. ### Math

On the reality TV show Last Man Standing, a package is thrown from a plane to the ocean below. The contestants must swim to the package to receive the "free pass" located inside the package. The path that the package follows can

2. ### Mathematics

Let f(x) = 3x^2 – 2x + n and g(x) = mx^2 – nx + 2. The functions are combined to form the new functions h(x) = f(x) - g(x) and j(x) = f(x) + g(x). Point (6, 2) is in the function h(x), while the point (-2, 10) is in the

3. ### math help!!!

stuck!! pls help/explain!!! 2. Do the values in the table represent a linear function? If so, what is the function rule? (1 point) x = -2, 0, 2, 4 y = -4, 0, 4, 8 The values do not show a linear function. Yes, they show a linear

4. ### History

What do Industrial Revolution-era strikes show about the working class during this period? The working class’s labor concerns were solved by the government. The working class was becoming less willing to do difficult labor. The

1. ### math

the sum of the ages of two siblings is 23 and the difference between their ages is 7. if frank is the older brother of beth, determine their ages by creating a pair of simultaneous equations and solving them. this is killing me i

2. ### Function plz help!!!

If a function u(x,y)=arctan(y/x) deduce the laplace equation of the function. plz show working i don't no where to start from...plz thanks

3. ### numerical methods

Consider a spherical storage tank containing oil. The tank has a diameter of 8 ft. You are asked to calculate the height h to which a dipstick 10 ft long would be wet with oil when immersed in the tank when it contains 6 3 ft of