Choose the equation that matches the graph
a. y=*
b. y=-x
c. y = 4x
d. y = -4x

y = - 1/4 x

Step-by-step explanation:

Look for the slope of this graph.

Take for an example of a point. Let's take (-4,1) and (0,0)

Now let's see how many downs and rights needed to go from (-4,1) to the origin (0,0).

As you can see, it goes 1 down and 4 rights.

So now you know the slope of the line which mean you can choose one of the choices now.

1 down, means negative one (-1), will be a numerator of the slope fraction and 4 right, meaning positive four (4), will be a denominator of the slope fraction.

Note: This method is only available when you see two easy points to determine. In most cases you have to do the math using the slope formula.

Hope this helps

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock