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guapka [62]
3 years ago
6

Graph the linear equation to -2x+7y=-21

Mathematics
2 answers:
mr Goodwill [35]3 years ago
8 0

Answer:

This equation is in standard form, so to make graphing easier you need to put it in y=mx+b form or slope, intercept form.

Step-by-step explanation:

I have attached a photo of what the graph would look like.

However, in the future you should know how to turn this into a slope intercept equation.

-2x+7y=-21

+2x        +2x

7y=2x-21

divide the entire equation by 7

y= 2/7x-3

That is a full equation in slope intercept form.

Hopefully this helps!

Maru [420]3 years ago
7 0
Your points should be (0,-3),(21/2,0) and the slope is 2/7 so just go up 2 units from each point and 7 to the right.
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Write the equation of the line in fully simplified slope-intercept form.
AURORKA [14]

Answer:

y=-x+3

Step-by-step explanation:

rise is 3 and the run is 3

6 0
3 years ago
Read 2 more answers
If f(x) = -5x, then f(-3)=<br><br><br><br> If g(x) = 2x - 1, then g(4)=
Rudik [331]
F(x) = -5x
f(-3) = -5(-3)
f(-3) = 15

---

g(x) = 2x - 1
g(4) = 2(4) - 1
g(4) = 8 - 1
g(4) = 7

Answers:
f(-3) = 15
g(4) = 7

Hope this helps.
6 0
3 years ago
Which value of x makes this equation true? -8(x + 5) = -3x − 7 + x − 3
tresset_1 [31]

Answer: x = -5

Step-by-step explanation:

-8 (x + 5) = -3x - 7 + x - 3

First, we use distributive property

-8x - 40 = -3x - 7 + x - 3

Then, we combine like terms.

-3x + x = -2x

-7 + -3 = -10

-8x - 40 = -2x - 10

Add 10 to each side

-8x - 30 = -2x

Add 8x to each side

-30 = 6x

Divide each side by 6

-5 = x

8 0
3 years ago
The given information were that Robi has run the first 4 miles of a race in 30 minutes and she reached the 6 mile point after 45
strojnjashka [21]

Answer:

Positive

Step-by-step explanation:

Slope: (6-4)/(45-30)

= 2/15

6 0
3 years ago
An office manager needs to decide between two tables for the conference room. One is rectangular, 5 feet wide by 10 feet long. T
zvonat [6]
Radius of circle= 4

a) circle circumference=2(pi)r
circumference=2(pi)4=25.13

P=2W+2L
p=2(5)+2(10)
P=30

b) area of circle=pi(r^2)=pi(16)=50.27
area of rectangle=L×W= 5×10= 50

c) I think you can figure it put
5 0
4 years ago
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