Question

(question is included in the image) answer in a simple way and on point to be marked brainilest

Answer 1

a) 2, -1, -1 ,7

b) If we are only using the graph the estimate would be a little less than 1.5, so 1.4. Below I calculated the answer and rounded to the nearest tenth would be 1.4

Explanation:

a)

x = -2

y =
`x^(2)` -2 Substitute -2 for x

y =
`(-2)^(2)` - 2

y = 4 - 2

y = 2

x = -1

y =
`x^(2)` -2 Substitute -1 for x

y =
`(-1)^(2)` - 2

y = 1 - 2

y = -1

x = 1

y =
`x^(2)` - 2 Substitute 1 for x

y =
`1^(2)` -2

y = 1 - 2

y = -1

x = 3

y =
`x^(2)` -2 Substitute in 3 for x

y =
`3^(2)` - 2

y = 9 - 2

y = 7

b)

y =
`x^(2)` - 2 Substitute in 0 for y

0 =
`x^(2)` - 2 Add 2 to both sides

0 + 2 =
`x^(2)` - 2 + 2

2 =
`x^(2)`

`√(2)` =
`\sqrt{x^(2) }`

1.4 ≈ x

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