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3 years ago

How do i find B with a table??

Mathematics

1 answer:

Artist 52 [7]3 years ago

4 0

B is the Y-intercept or where the graph crosses the y-axis. they provide you with a few things which can help you figure this out. they give you the values of x and y in a table
X | Y
2 | -5
4 | -9 The difference between each Y value is 4...so, I add 4 to the -5
6 | -13 and get -1...going up another value for the X would be at 0. This leaves me with an ordered pair of (0,-1).....thus, the value of b is -1.

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Line c has an equation of y=-3/4x-3. Line d is parallel to line c and passes through the points (-2, -2). What is the equation o

blagie [28]

Answer:

y = $\frac{3}{4}$ x - $\frac{7}{2}$

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - $\frac{3}{4}$ x - 3 ← is in slope- intercept form

with slope m = - $\frac{3}{4}$

Parallel lines have equal slopes , then

y = - $\frac{3}{4}$ x + c ← is the partial equation of line d

to find c substitute (- 2, - 2 ) into the partial equation

- 2 = $\frac{3}{2}$ + c ⇒ c = - 2 - $\frac{3}{2}$ = - $\frac{7}{2}$

y = - $\frac{3}{4}$ x - $\frac{7}{2}$ ← equation of line d

5 0

3 years ago

I need help with 7th grade math please 30 points need help ASAP + brainleist

Gwar [14]

Answer:

See below ~

Step-by-step explanation:

<u>Circle 1</u>

Circumference = 2πr = 2 x 3.14 x 2.5 = 5 x 3.14 = 15.7 m
Area = πr² = 3.14 x (2.5)² = 3.14 x 6.25 = 19.625 m²

<u>Circle 2</u>

Area = πr² = 3.14 x 1² = 3.14 mm²
Circumference = 2πr = 2 x 3.14 x 1 = 6.28 mm

5 0

2 years ago

Read 2 more answers

Two cooks purchased plates and cups at the same store. The first cook bought 4 plates and 5 cups for a total of $25.25. The seco

Thepotemich [5.8K]

X=number of plates
y=number of cups

4x+5y=25.25

7x+3y=25.50

Add the two equations together:

11x+8y=50.75
11x=50.75-8y

x= $\frac{50.75-8y}{11}$

Plug x into the first equation:
4x+5y=25.25

4( $\frac{50.75-8y}{11}$ ) = 25.25

$\frac{4(50.75-8y)}{11}$ = 25.25

$\frac{203-32y}{11}$ = 25.25

203-32y = 277.75

-32y=74.75
32y=-74.45
y=2.34 (rounded to nearest hundredth)

The price of a plate is $2.34

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3 years ago

If the numbers -2.5, -1.6, -3 1/10, - 1/10, and -0.5 were graphed on a number line, which would appear farthest to the left?

Leona [35]

Turn the question around.
If all the numbers were positive: 2.5, 1.6, 3 1/10, 1/10, and 0.5, which would be farthest to the right?

The fact is that the negative numbers are a reflection of the positive numbers.
Since 3 1/10 would be farthest to the right with positive numbers, -3 1/10 will be farthest to the left with the negative numbers.

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3 years ago

Tickets to a museum cost $16 each. For a trip, the museum offers a $4 discount on each ticket. How much will tickets cost for 31

dlinn [17]

Answer:

$372

Step-by-step explanation:

$16-4=12/ticket

$12 x 31=$372

7 0

3 years ago