Number 3 only problem solving how you do this ?
1 answer:
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The equation 2 has a graph which is a straight line.
Why?
We can know which of the given equations has a graph which is a straight line just checking the exponents of the variables.
We must remember that every variable that has an exponent equal or higher than 2 (quadratic) will not have a straight line as a graphic.
So, checking the exponents from the given equations, we have:
Hence, we can see that the only equation that has a linear term (straight line graph), is the second equation.
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Note: I have attached a image for better understanding.
Answer:
Option 1.
The solution set is: {n|n is a real number, n≥3}
Step-by-step explanation:
1. You must read carefully the information given in the problem: "One less than twice a number" indicates that you must write a number multiplied by 2 and subtract 1 from this term, as following:
2. "is not less than five" indicates that the result must be equal or greater than 5. Then, you obtain the following expression:
3. Now, you can solve for . Then, you obtain:
4. Then, the solution set is: {n|n is a real number, n≥3}.
5. The correct plot on the number line must show a circle on 3 (You must fill in the circle if the sign is or
) with a line from that circle to the right.
5. Therefore, the answer is the first option.