Use the intercepts to graph the equation.
7x - 3y = 21

x-intercept (3,0)

y-intercept (0,-7)

Step-by-step explanation:

The x-intercept is when y is 0.

We are going to replace y with 0 giving us:

7x-3(0)=21

7x       =21

Divide both sides by 7:

x        =21/7=3

So the x-intercept is (3,0). So go on the x-axis and count 3 to the right of the origin. Put a dot there.

The y-intercept is when x is 0.

We are going to replace x with 0 giving us:

7(0)-3y=21

     -3y=21

Divide both sides by -3:

       y=21/-3=-7

So the y-intercept is (0,-7).  So go on the y-axis and count down 7 units from the origin. Put a dot there.

Connect your dots with a straightedge and you are done.  Extend it pass the points and both directions.

You may see the attachment for my graph of this equation using the intercepts to guide me in the graphing of the line.

c

step-by-step explanation:

i think because what else can be a sample of every member

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.