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2 years ago

What’s the slope and equation

Mathematics

2 answers:

Pie2 years ago

5 0

Y=-10x-100

Rise over run

Alex_Xolod [135]2 years ago

3 0

Answer:

slope = -5 equation= y=-5x+100

Step-by-step explanation:

pick the x and y intercepts as your points to find the gradient that is

(20,0) and (0,100)

slope =∆y/∆x

=100/-20

= -5

take point(20,0) and (x,y) to find equation using the slope

equation becomes y= -5x+100

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Solve the equation. -2x + 7x + 34 = -2 ( 1 - 7 \x )

Pani-rosa [81]

Answer:

-2x + 7x + 34 = -2 ( 1 - 7 x ) x=4

7 0

2 years ago

What is the y-intercept of the graph of the function f(x) = x^2 + 3x + 5?

Semenov [28]

Answer:

(0,5)

Step-by-step explanation:

To find the y-intercept, substitute in 0 for x and solve for y.

y=x^2 + 3x + 5

y=(0)^2 + 3(0) +5

y=0+0+5

y=5

Since there is no x coordinate for a y-intercept, the answer is (0,5)

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3 years ago

The perimeter of a rectangle is found by using the formula P = 2l + 2w, where P is the perimeter, l is the length and w is the w

velikii [3]

Answer:

#1: 11 cm

#2: 16.5 in

#3: 2.5 feet

Step-by-step explanation:

$P=2l+2w$ Solve for width by substracting 2l on both sides to isolate 2w

$P-2l=2w$

$2w=P-2l$

Replace.

$2w=26-2(2)\\2w=26-4\\2w=22\\w=\frac{22}{2}\\ w=11cm$

----------------------------------------------------------------------------

$P=2l+2w$

$P=2(3.5)+2(4.75)\\P =7+9.5\\P=16.5in$

----------------------------------------------------------------------------

$P=2l+2w$

Solve for l

$2l=P-2w\\2l=7-2(1)\\2l=7-2\\2l=5\\l=\frac{5}{2}\\ l=2.5feet$

5 0

3 years ago

Which statement best explains a negative impact that zebra mussels can have on an ecosystem?

Oduvanchick [21]

The correct answer is D

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2 years ago

What diretction does the parabola open if its equatin is y=-4(x+2)^2

Fed [463]

It is a cap-size parabola. The parabola "goes down". The graph of this function looks like in this attached picture.

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2 years ago