Can someone help me with part b of question please.

1.75:1

Step-by-step explanation:

1. A ratio is like a fraction, so 7:4 = 7/4. When they're asking you to put it into n:1 form, they're asking you to make the denominator one.

2. What they're asking:

              7/4 = n/1

3. Solve for x:

      n =1.75

4. Put it into ratio form:

          1:75:1

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)