Reflection across the x-axis:

y = − f ( x ) y = -f(x) y=−f(x) The concept behind the reflections about the x-axis is basically the same as the reflections about the y-axis.
The answer to this is D.
The tricky part of this question is to determine the relationship between Lee's points and Alex's points.
From the description "Lee scored 25 points" we can be sure that Lee's points are 25. That's the easy part.
Here comes the real question. We need to change "that was 3 more than twice the number of points Alex scored" into an algebraic equation. From "twice the number of points Alex scored", we can know it's 2a, as Alex's points are represented by a and twice means 2 times. From "that's 3 more", we can determine that Lee has a higher point (25 larger than 2a by 3 points). So, Alex need to add a few more points in order to have the same value as Lee did.
Therefore, if we combine everything together, we can get 25 (Lee's points) = 3 + 2a (twice Alex's points plus 3 because Alex has less points). The answer is D.
Neither, if you plug in botch ordered pairs to the variables, then neither is a solution.
Answer:
We cant make graphs on here but if you put the quadiraletal to the right and drag the left numbers toward the front.
Answer:
3840000
Step-by-step explanation:
you need to multiply 20 times 60
times 80 times 40