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2 years ago

What is the slope of a line that passes through the points (8, -7) and (4, -10)

Mathematics

2 answers:

goldenfox [79]2 years ago

7 0

The slope of the line is 3/4.

Eddi Din [679]2 years ago

5 0

Answer:

I have no Idea, nor do I care

Step-by-step explanation:

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2 Points

nlexa [21]

The answer is b+9 I believe

6 0

3 years ago

I’ll give brainliest

Serjik [45]

Answer:

The graph of the system of equations solves the equation $-\frac{1}{4}$ x + 2 = 2x - 7 ⇒ C

Step-by-step explanation:

Let us revise some important notes about the slope and y-intercept of a line

The form of the linear equation is y = m x + b, where m is the slope and b is the y-intercept

If the line has a positive slope then its direction will be to the right

If the line has a negative slope then its direction will be to the left

The y-intercept (0, b) is the the point of intersection between the line and the y-axis

If the line cuts the y-axis at a point above the x-axis, then b is positive

If the line cuts the y-axis at a point down the x-axis, then b is negative

To solve our question without any calculation, let us find the direction of the slopes and their y-intercepts

∵ The direction of the blue line is to the left

→ That means m in the equation is negative

∴ Its slope is negative

∵ The line intersects the y-axis at point (0, 2)

→ That means b in the equation = 2

∴ The number in the equation is 2

→ Look at the answer we have two answers have negative slope and

y-intercept 2 in the left hand side ⇒ C and D

∴ The equation of the blue line is represented by the left side $-\frac{1}{4}$ x + 2

→ that means the equation of the red line is represented by the right side

∵ The direction of the red line is to the right

→ That means m in the equation is positive

∴ Its slope is positive

→ Only C has a positive slope in the right side

∴ The equation of the red line is represented by 2x - 7

The graph of the system of equations solves the equation $-\frac{1}{4}$ x + 2 = 2x - 7

Another way:

You can solve each equation to find the value of x, then substitute it in one side of the equation to find y , the values of x and y must be (4, 1) as the point of intersection of the two lines in the graph

8 0

3 years ago

How much do you need to subtract from 31/6 to make 5

matrenka [14]

Answer:

1/6

3/10

1 7/8

1 6/7

1 5/9

should be anyway

6 0

3 years ago

Eugene can type 55 words per minuet. Allen can type 80 words in 2 minuets. If Eugene and Allen each type for 30 minuets, how man

Art [367]

Answer:

Step-by-step explanation:

55x30=1650 80/2=40 40x30=1200

1650-1200=450 Therefore Eugene has type 450 more words then Allen has

7 0

2 years ago

Use the properties of logarithms to expand the expression as a sum or difference, and/or constant multiple of logarithms. (Assum

Alecsey [184]

Answer:

$\log_5(9)+\frac{1}{2}\log_5(x)-3\log_5(y)$

Step-by-step explanation:

$\log_5(\frac{9\sqrt{x}}{y^3})$

First rule I'm going to use is the quotient rule:

$\log_b(\frac{m}{n})=\log_b(m)-\log_b(n)$

$\log_5(9\sqrt{x})-\log_5(y^3)$

Secondly, I'm going to rewrite the radical.

$\sqrt{x}=x^\frac{1}{2}$

$\log_5(9x^\frac{1}{2})-\log_5(y^3)$

Third, I'm going to use the product rule on the first term:

$\log_b(mn)=\log_b(m)+\log_b(n)$

$\log_5(9)+\log_5(x^\frac{1}{2})-\log_5(y^3)$

Fourth, I'm going to use power rule for both of the last two terms:

$\log_b(m^r)=r\log_b(m)$

$\log_5(9)+\frac{1}{2}\log_5(x)-3\log_5(y)$

6 0

2 years ago