The reflection of the point (4, 6) over the y-axis is:
2 answers:
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Answer:
Step-by-step explanation:
The point-slope form of an equation of a line:
m - slope
We have the slope and the point
.
Substitute:
- point-slope form
Convert to the slope-intercept form (y = mx + b):
<em> use the distributive property</em>
<em>add 4 to both sides</em>
- slope-intercept form
Answer:
Step-by-step explanation:
Set up the equation:
Since C(t) gives the number of cars purchased in the t-th year after 1998, then make the number of cars equal to 15 000 and solve for t - the year:
20t^2 = 15000
t^2 = 750
t =
The year will be simply 1998 + 5 \sqrt{30}
