Which value of x is in the solution set of the following inequalities -3x+5>17
1 answer:
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To find the solutions to the system, we need to find exactly when one expression is equal to the other. We can do this by setting both of the right sides equal to each other, so that
Subtracting x+6 from either side, we find
factoring out an x+6:
The x-coordinates of our solutions will therefore be 6 and -6. Since the question only asks for the <em>x-coordinate</em> of the midpoint, we simply need to find the number exactly halfway between 6 and -6, which is 0.
4.
<u>n | 1 | 2 | 3 | 4 | 5 | 6 |</u>
f(n)| -20 | -17.5 | -15 |-12.5| -10 | -7.5 |
First term: -20 Common Difference: 2.5
Explicit Rule: Recursive Rule:
5.
<u>n | 1 | 2 | 3 | 4 | 5 | 6 |</u>
f(n)| 123 | 131 | 139 | 147 | 155 | 163 |
First term: 123 Common Difference: 8
Explicit Rule: Recursive Rule: