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3 years ago

Which equation, in point-slope form, represents a line with m= -4/7 that goes through the point (-1, 4)?

1 answer:

4 0

A is the correct answer.

Point Slope Form: y - y₁ = m(x - x₁)

m = slope ⇒ -4/7
Coordinate: (-1 , 4)
x₁ y₁

All you have to do is plug in all of the information above into the formula.

y - 4 = -4/7(x +1)

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Solve each system of equations by writing a new system that eliminates one of the variables.

Rufina [12.5K]

Answer:

$x=33\\y=-41$

Step-by-step explanation:

Let:

$2x+y=25\hspace{5}(1)\\and\\4x+3y=9\hspace{5}(2)$

We need to eliminate one of the variables, so let's use elimination method. First multiply (1) by 2

$2*(1)\equiv\hspace{5}4x+2y=50$

Now subtract (2) from 2*(1) in order to eliminate x:

$2*(1)-(2)\\4x-4x+2y-3y=50-9\\-y=41$

Solving for y:

Multiplying both sides by -1

$y=-41$

Finally, replacing the value of y in (1)

$2x-41=25$

Solving for x:

add 41 to both sides:

$2x=66$

Multiply both sides by 1/2:

$x=\frac{66}{2} =33$

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3 years ago

1200((1)/(2))^(50)/(14)

Airida [17]

Answer:

aprox. 100.94

Step-by-step explanation:

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3 years ago

Read 2 more answers

When the expression 3(n + 7) is evaluated for a given value of n, the result is 33. What is

trapecia [35]

Answer:4

Step-by-step explanation:What +7=11 bause the () make a multiplication and 11x3=33

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3 years ago

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Witch is greater 4 cups or 2 quarts

mario62 [17]

2 quarts because 4 cups only goes into 1 quart and 2 quarts is a greater number then 1 so 2 quarts

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2 years ago

PLEASE HELP! POINTS!<br><br><br> Graph y = – 4/3x + 1

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I'm kind of thrown off for that negative sign, but I try it out in the one that makes sense is this one [ https://gyazo.com/192a76e70d2d46979691cabbf06e6c85 ] If you can better of explain where the negative sign will be great. Hope I helped.

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3 years ago