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Marysya12 [62]
3 years ago
15

A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function?

Mathematics
2 answers:
vodomira [7]3 years ago
8 0

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form \frac{y}{x}=k or y=kx

<u>With the point 1 or the point 2 find the value of the constant k</u>

<u>Point 1</u> (-8,-6)

x=-8

y=-6

substitute

\frac{y}{x}=k

\frac{-6}{-8}=k

k=\frac{3}{4}

therefore

the equation is

y=\frac{3}{4}x

<u>the answer is the option </u>

y=\frac{3}{4}x

strojnjashka [21]3 years ago
6 0
Y=3/4x, as the sign of the function does not change, and the y value is less than the x value
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9. a. Maurice says that 1079 ÷ 62 is 16 with a remainder of 87. a. Without seeing his work, how can you tell Maurice divided inc
mamaluj [8]

Answer:

a.  We can tell that Maurice divided incorrectly because if the dividend is 62, you can't have a remainder of 87, because 62 goes into 87 once, so the answer would be 17 with a remainder of 25.  B. YOu can use that fact to find the correct quotient, because 87/62 is 1, with a remainder of 25, so 16+1=17, so the answer is 17 with a remainder of 25.   Please vote the brainliest.

Step-by-step explanation:

8 0
3 years ago
Helpppp? please if possible .&lt;3
marusya05 [52]
Am I too late to answer this
5 0
3 years ago
Read 2 more answers
A line that contains the point (-8,-1) and is perpendicular to -15x +3y = 9
zaharov [31]
Put the other line in point slope form...(solve for y :D )

3y=15x+9

y=5x+3, so this line has a slope of 5

For a line to be perpendicular to another the slopes have to be negative reciprocals of each other...mathematically...

s1*s2=-1

So for the other line to be perpendicular to the first:

5m=-1, m=-1/5, thus our other line (so far) is:

y=b-x/5, now we can use the point (-8,-1) to solve for the y-intercept, "b":

-1=b-(-8)/5

-1=b+8/5

-1=b+1.6

b=-2.6

So the perpendicular line that contains the point (-8,-1) is:

y=-0.2x-2.6
7 0
3 years ago
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