The cost of t-shirts varies directly with the number of t-shirts. The data is shown in the graph. If x = is number of t-shirts,
and y = the cost, which equation models Bill's direct variation?
A) y = 11x
B) y = 5.5x
C) y = 11 + x
D) y = 5.5 + x
Thanks
A) y = 11x
B) y = 5.5x
C) y = 11 + x
D) y = 5.5 + x
Thanks
2 answers:
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Answer:
Step-by-step explanation:
Equation of the line y = mx + c
The new line is perpendicular to 2x - 3y = -5
- 3y = - 5 - 2x
3y = 2x + 5
y =
Since the lines are perpendicular to each other :
where .
Slope of the given line
Slope of the new line
The equation to the new line passing through (-4, -3) and perpendicular to 2x - 3y = -5