Question

Which point is the graph of the ordered pair (–4, 2)?

A.
point A

B.
point C

C.
point D

D.
point B

Answer 1

The 1st number in the ordered pair (-4) is the x-coordinate. So, beginning from the origin, travel -4 units in the x-direction, i.e. 4 units to the left. The second number in the ordered pair (2) is the y-coordinate. So, now turn and travel 2 units in the y-direction, i.e. 2 units up. Where does that put you?

Answer 2

A?

Answer 3

Correct. Well done.

Answer 4

I have another question can you help me?

Answer 5

Please post it.

Answer 6

Points A and B lie on the graph of the equation y = 5.2x.

What are the y-coordinates for each point?

Point A: (−6, ) Point B: (7, )

Answer 7

I am just terrible at algebra.

Answer 8

No worries. You are given the x-coordinate for each point. Just substitute each x-value into the given equation and solve for the associated y-value. For example, if you were given
Point C: (-3, )
you would calculate as follows;\[y=5.2x\]\[y=5.2(-3)\]\[y=-15.6\]Get it?

Answer 9

aw

Answer 10

?

Answer 11

so a would be 30.12

Answer 12

Not quite. Use a calculator and try again.

Answer 13

-31.2

Answer 14

Excellent.

Answer 15

b would be 36.4?

Answer 16

Right on. Good job.

Answer 17

Thanks I just needed that to refresh my memory.

Answer 18

You're welcome.

Answer 19

I have one more.

Answer 20

What is the slope of the line passing through the points (–3, 4) and (2, –1)?

A.

3/5

B.
1

C.
–1

D.

-5/3

Answer 21

this is a

Answer 22

this is b

Answer 23

this is c

Answer 24

this is d

Answer 25

Which is a graph of y= 1/2x?