Question

** HELP ASAP ** please check if these are right!! and show me how to do them please :))

Answer 1

1. D

2. C

3. C

4. C

Explanation:

1. Use slope formula, there are 2 versions:
`(y1-y2)/(x1-x2)` and
`(y2-y1)/(x2-x1)`

Plug in the values and solve

2.

y = -3 creates a horizontal line with a slope of 0, so it is wrong.

x = -2 has a vertical line with an unidentifed slope so it is correct.

3.

Divide everything by 2 and isolate y, then use the formula y = mx + b

(m is slope)

4. Use the slope formula again (look at question 1 for reference)