Answer:
b. f(x) = -2x +2
Step-by-step explanation:
The graph has a negative slope (m < 0) and a positive y-intercept (b > 0). The only equation with those characteristics is ...
f(x) = -2x +2
_____
<em>Additional comment</em>
The line on the graph appears to fall by 2 grid squares for each 3 to the right. That means it has a slope of ...
m = rise/run = -2/3
None of the offered equations have that slope. We have to assume the graph is "not to scale". Hence we can only comment on the signs of slope and intercept, and not their values.
You may want to discuss this question with your teacher.
Answer:
81
Step-by-step explanation:
I guess you mean . Since is in quadrant III, we expect . Then
Since is in quadrant I, we expect , so that
Now,
and
Answer:
Step-by-step explanation:
y = Dean's age
x = Dean's sisters age
y = 2x
x + y < 21
W = 9
9/15 = 3/5
9 divided by 3 equals 3
15 divided by 3 equals 5
I hope this helps !