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Ivanshal [37]
2 years ago
14

Some students are going on a field trip. The cost of the trip is $100, in addition to $7per student. Write an equation that rela

tes the total cost of the trip, C, to the number of students attending,n.
Mathematics
1 answer:
grigory [225]2 years ago
5 0

Answer: C= 100+7n

Step-by-step explanation:

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Two planes leave airport at the same time, one traveling south and one traveling west. If three hours later they are 500 miles a
Snezhnost [94]
It traveled 300 miles
4 0
3 years ago
Describe the difference between parallel and perpendicular lines, their slopes and graphs
Aloiza [94]

Parallel lines have the same slopes (but different y intercepts). Parallel lines never cross. Parallel lines are the same distance from each other no matter where you are on either line. Think of it like a pair of perfectly straight railroad tracks.

-------------------------------------------------------------------------------------

Perpendicular lines cross at one point. The two lines form a 90 degree angle. The two slopes multiply to -1, which is another way of saying that the slopes are negative reciprocals of one another. For example, a line with a slope of 2/3 and another line with a slope of -3/2 has these two values multiply to -1; therefore showing they are perpendicular lines.

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3 years ago
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I’m confused on how to do this can anyone help?
Lyrx [107]

Answer:

multiply the top by the bottom and it will give you ze answer

Step-by-step explanation:

3 0
3 years ago
PLEASE help me solve this problem. I really need help.
mote1985 [20]
When:
a = b = 0 we have point (0,0).
a = 0 and b ≠ 0 vertical line segment from (0, -b) to (0, b)
a ≠ 0 and b = 0 horizontal line segment from (-a, 0) to (a, 0)
a ≠ 0 and b ≠ 0 a ≠ b ellipse
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3 0
3 years ago
Write the equation of the line, in point-slope form. Identify (x1, y1) as the point (-2, -1). Use the box provided or the upload
riadik2000 [5.3K]

For this case we have that by definition, the equation of a line in the point-slope form is given by:

(y-y_ {0}) = m (x-x_ {0})

Where:

(x_ {0}, y_ {0}): It is a point through which the line passes

m: It's the slope

We have according to the graph, that the line goes through:

(x_ {1}, y_ {1}): (- 2, -1)\\(x_ {2}, y_ {2}) :( 2,1)

We found the slope:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {1 - (- 1)} {2 - (- 2)} = \frac {1 +1} {2 + 2} = \frac {2} {4} = \frac {1} {2}

Thus, the line is of the form:

(y-y_ {0}) = \frac {1} {2} (x-x_ {0})

We substitute a point:

(y-1) = \frac {1} {2} (x-2)

Answer:

(y-1) = \frac {1} {2} (x-2)

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