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3 years ago

What is the y intercept in y= 1/4x -2

Mathematics

2 answers:

Naddika [18.5K]3 years ago

8 0

The equation is in slope-intercept form (y = mx + b), where b is the y-intercept. So the y intercept is at y = -2.

julsineya [31]3 years ago

6 0

Y = 1/4x - 2

This equation is written in slope - intercept form.

Slope - Intercept form formula: y = mx + b; the 'm' represents the slope, and 'b' represents the y - intercept.

Therefore, the slope is 1/4 and the y - intercept is -2

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Simplify 42 ⋅ 48. Can someone please help me?

weqwewe [10]

your answer is 2016

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3 years ago

It has been said that newspapers are disappearing, replaced by various electronic media. In 2004, newspaper circulation (the num

shutvik [7]

Answer:

A. $y=-1.2x+59$

B. 42.2 million

Step-by-step explanation:

Part A:

Given:

Newspapers circulated in year 2004, $y_{1}=59\textrm{ million}$

Newspapers circulated in year 2014, $y_{2}=47\textrm{ million}$

Let the time $x$ start at the year 2004. So, $x_{1}=0$

For the year 2014, $x_{2}=2014-2004=10$

Therefore, linear relationship between newspapers circulated and time passed since 2004 is given as:

$y-y_{1}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}(x-x_{1})\\y-59=\frac{47-59}{10-0}(x-0)\\y-59=-\frac{12}{10}x\\y=-1.2x+59$

Therefore, the equation describing the relationship is: $y=-1.2x+59$

Part B:

For the year 2018, $x=2018-2004=14$

Plug in 14 for $x$ in the above equation and solve for $y$ . This gives,

$y=-1.2(14)+59\\y=-16.8+59\\y=42.2$

Therefore, in the year 2018, the newspaper circulation will be 42.2 million.

8 0

3 years ago

What is the ratio of rise to run between the points (3, 4) and (–2, 0)?

mihalych1998 [28]

Answer:

○ B) ⅘

Step-by-step explanation:

Starting from the second endpoint, you go four blocks south over five blocks west [west and south are negatives], giving you ⅘.

I am joyous to assist you anytime.

4 0

3 years ago

What is the factored form of the expression 9x2 + 6x + 1?

DanielleElmas [232]

Answer:

(3x + 1)²

Step-by-step explanation:

Given

9x² + 6x + 1 ← is a perfect square of the form

(ax + b)² = a²x² + 2abx + b²

Compare like terms to find a and b

a²x² = 9x² ⇒ a² = 9 ⇒ a = $\sqrt{9}$ = 3

b² = 1 ⇒ b = $\sqrt{1}$ = 1

and 2ab = 2 × 3 × 1 = 6

Thus

9x² + 6x + 1 = (3x + 1)²

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4 years ago

Evaluate the expression when x=4 and y+-6. x-5y

rosijanka [135]

Answer:-26

Step-by-step explanation:

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3 years ago