Which system of equations matches the graph below? look for the answer choices below
graph?
@mathmate or aum :)
The graph shows a straight line with a negative slope when x <= 1. And a parabola when x > 1. Therefore, ....
\( \le \) is read as "less than or equal to" \( \ge \) is read as "greater than or equal to"
You may want to change the wordings in your answer choices a, b and d.
why?
What does "x less than or greater to 1" mean?
i'm not sure let me check
I will re edit the question :)
y = x2 if x < 1 y = -x if x less than or equal to 1 y = -x if x less than or equal to 1 y = x2 if x > 1 y = x2 if x > 1 y = x if x greater than or equal to -1 y = x if x less than or equal to 1 y = -x2 if x > 1
each two lines are one answer choice
You have two parts to the graph. A straight line on the left and part of a parabola on the right. The domain of the straight line is x≤1. Notice how it is ≤ and not \(<\). That is because at x = 1, the straight line has a closed circle indicating x = 1 is part of the straight line. But in the parabola, at x = 1 you see an open circle indicating that x = 1 is not part of the parabola. Now the straight line has a negative slope and it is a 45 degree straight line, passing through the origin. Therefore, the equation of the straight line is: y = -1 for x≤1.
I meant y = -x for x≤1.
The parabola is \(y = x^2\) for \(x \gt 1\)
Yes, B.
oh ok thx! :)
yw.
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