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Eduardwww [97]
3 years ago
11

Find the equation of a line with slope 1/2 and y intercept -1

Mathematics
1 answer:
Mrac [35]3 years ago
4 0
If you use slope-intercept form, Y =mx+b

m is equal to the slope,
and b is the y intercept.

Y= (1/2)x+ (-1)

or
Y = (1/2)x-1
You might be interested in
PLEASE HELP!!!<br><br> What is the solution set for 10 - 4x &lt; -22?
Tom [10]

Answer:

x > 8

Step-by-step explanation:

Solve for x to find the solution.

10 - 4x < -22

Subtract 10 from both sides.

-4x < -32

Divide both sides by -4. Flip the sign when dividing by negative.

x > 8.

7 0
3 years ago
Read 2 more answers
What is the area of a sector of a circle with a radius of 9 centimeters and formed by a central angle that measures 120°?
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

If this was an entire circle, the area could be found by using

Area = pi * r^2 where r = 9

To take the central angle into account, use this formula

Area = 120/360  * pi * r^2

Area = 1/3 * pi * 9^2

Area = 27 pi

area  = 84.78 cm^2  which isn't there.

6 0
2 years ago
Math!! please please helppp!!!
ololo11 [35]

Answer:

D

Step-by-step explanation:

you can use the slope intercept form: y = mx + b.

y = y cooordinate

m = slope

x = x coordinate

b = y intercept

the y intercept is 4.

the point (1, 7) is what we're going to use.

so the new equation is

7 = m + 4 (it would be 1m, but i rewrote it to be mathmatically correct)

subtract 4 from both sides, you should have 3 = m.

the slope is 3

3 0
2 years ago
Factor the quadratic expression completely.<br> -3x^2 + 17x - 20
Luba_88 [7]
Answer- -(x-4)(3x-5)

Work- -3x^2+12x+5x-20
-3x(x-4)+5(x-4)
7 0
3 years ago
Please show your work :)
saul85 [17]
1. Slope-intercept form is y=mx+b, where m=slope and b=y-intercept. To answer this question, plug in the values they have given you.

y=mx+b
y=1/4x-5

2. To write an equation in slope-intercept form when given two points, use m=y2-y1/x2-x1

Remember: in an ordered pair, x comes first then y.

Plug the y- and x-values in. So, y2=6, y1=2 and x2=-2, x1=9

6-(-)2/-2-9= - 4/11.

The slope of your next equation would be m= - 4/11
3 0
2 years ago
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