Is (4,9) a solution to this system of inequalities? y < x + 3 and y > 2x + 1
1 answer:
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Answer:
d) one solution; (4, 1)
Step-by-step explanation:
It often works well to follow problem directions. A graph is attached, showing the one solution to be (4, 1).
_____
You know there will be one solution because the lines have different slopes. Each is in the form ...
y = mx + b
where m is the slope and b is the y-intercept.
The first line has slope -1 and y-intercept +5; the second line has slope 1 and y-intercept -3. The slope is the number of units of "rise" for each unit of "run", so it can be convenient to graph these by starting at the y-intercept and plotting points with those rise and run from the point you know.
Answer:
D
Step-by-step explanation:
You are going to roll two dice.
If you roll one die, then there are 6 possible outcomes:
If you roll two dice, then there are possible outcomes:
Here the first number is the number rolled on the first die, the second number is the number rolled on the second die.