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Ulleksa [173]
3 years ago
10

A line has a slope of -2 and contains the points (3,5) and (4, y). The value of y is

Mathematics
1 answer:
stira [4]3 years ago
8 0

Answer:

y = 3

Step-by-step explanation:

Here we have:

change in y             y - 5

----------------- = -2 = ----------    or

change in x              4 - 3

 y - 5

---------- = -2, or y - 5 = -2.  Thus, y = 3

      1

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4 years ago
write an equation in slope-intercept form of the line whose y-intercept is -3 and the line is perpendicular line whose equation
Artemon [7]

first you need to find the slope of he current equation by changing it to y=mx+b

3x-2y=9  subtract 3x from both sides

-2y=-3x+9  divide both sides by -2

y+3/2x-9/2  Your slope of the existing is 3/2 or 1 1/2

a perpendicular line has the opposite reciprocal slope so 3/2 would be -2/3

-3 is your y intercept. now you can make your equation

y=-2/3x-3

8 0
3 years ago
Let w = 4. Enter >, <, or = to compare the expressions. 3w² + 1 10w + 8
Svetach [21]

Answer: ≥ without the line on the bottom.

Step-by-step explanation:

I am assuming the expression you are talking about are

3w^{2} +1 and 10w+8.

If we were to replace w with 4 and calculate, we will find the answer:

3*4^{2}  +1=3*16+1=48+1=49

10*4+8=40+8=48

Since the first expression, 3w^{2} +1, is bigger than the second expression, the correct symbol to use is ≥ without the line on the bottom.

6 0
3 years ago
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padilas [110]

Answer:

A

Step-by-step explanation:

The function has vertical asymptotes at x=7 and x=-3, so the denominator needs to have factors (x-7) and (x+3).

This eliminates all the options except for A.

3 0
2 years ago
In the equation Ax + By = C, A and B
Rudik [331]

Answer:

0(x) + BY=c

0 + By = c

By = c

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BY/by = c/By

= c/by

3 0
3 years ago
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