13.
(a)
for x = 2:
for x = 5
(b)
The graph is:
(c)
Using the graph:
Using the quadratic formula:
Need help plz help with this questiom
2 answers:
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Answer:
Step-by-step explanation:
From the table attached,
x-intercept of the linear function is, the value of 'x' when f(x) = 0
x = 3 [x-intercept]
Function 'g' is the sum of 2 and the cube root of the sum of three time x and 1.
g(x) =
For x-intercept,
g(x) = 0
3x + 1 = (-2)³
3x + 1 = -8
3x = -8 - 1
3x = -9
x = -3
Therefore, the x-intercept of function 'f' is different or greater than the x-intercept of function g.
Answer:
The table in the exercise can be completed with the next results:
- x y
- 2 <u>9</u>
- 4 <u>11</u>
- 6 <u>13</u>
- 8 <u>15</u>
Step-by-step explanation:
As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:
- y = x + 7
Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:
When x is 2:
- y = 2 + 7
- <u>y = 9</u>
When x is 4:
- y = 4 + 7
- <u>y = 11</u>
When x is 6:
- y = 6 + 7
- <u>y = 13</u>
When x is 8:
- y = 8 + 7
- <u>y = 15</u>
At last, <u>to obtain the graph you can use the formula made: y = x + 7</u>, and you'll obtain a graph like the attached picture, <em>where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7</em>.
