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3 years ago

(look at image) can someone explain to me how to do number 1

Mathematics

2 answers:

Rufina [12.5K]3 years ago

5 0

Answer:

so it would be y= -4x + 3

Step-by-step explanation:

its asking to write the equation in slope-intercept form so y=mx+b m in this case is -4 and b whihc is the y-intercept is 3 so you just write the equation y= -4x + 3

frez [133]3 years ago

5 0

Answer:

y = -4x + 3

Step-by-step explanation:

1.Turn y intercept into coordinate

(0,3)

2.Now that we turned y intercept intercept into a coordinate, we can do the formula y - y1= m(x-x1)

y - 3 = -4(x - 0)

y - 3 = -4x

y= -4x + 3

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How can you find a function that has these roots in a cubic polynomial function?jj

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Step-by-step explanation:by substituting 1 for each of x in the equation. and apply it for problems, if the solution is 0 that means it the solution of x=1

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4 years ago

Pumpkin patch: Suppose we plant pumpkins in a garden where half of the plants are shaded. Then, to test a new fertilizer, we fer

VladimirAG [237]

Answer:

B. Fertilizer.

Step-by-step explanation:

In this experiment, you actually failed to include the fertilizer. This is because you are only fertilizing the pumpkins in the sun and not the shade. Therefore, you really do not know if the pumpkins that grew larger and prettier did so because of the fertilizer or the sun. What you should have done was either fertilized all pumpkins, none of the pumpkins, or half of the ones in the sun and half of the ones in the shade. That way you can correctly isolate the effect of the fertilizer on the pumpkins growth.

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3 years ago

Write the equation of a line that passes through the point (12, 5) and has a slope of -3

Pavlova-9 [17]

Answer:

y - 5 = -3(x - 12)

General Formulas and Concepts:

Algebra I

Coordinates (x, y)

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate
y₁ - y coordinate
m - slope

Step-by-step explanation:

Step 1: Define

Point (12, 5)

Slope m = -3

Step 2: Write Function

Plug in variables into the general formula.

Substitute [PSF]: y - 5 = -3(x - 12)

3 0

3 years ago

A line is graphed below. Write an equation in the form y = mx + b that represents this line

galben [10]

<h3>Explanation</h3>

Slope-Intercept form

$y = mx + b \\ m = slope \\ b = y - intercept$

Calculate the slope with two given coordinate by using rise over run.

$\begin{cases}(x_1,y_1) = ( - 4,0) \\ (x_2,y_2) = ( 0,2) \end{cases}$

These two coordinate points are part of the graph and can be used to find the slope.

$m = \frac{y_2 -y_1 }{x_2 - x_1}$

Substitute the coordinate points in the formula.

$m = \frac{2 - 0}{0 - ( - 4)} \\ m = \frac{2}{ 4} \\ m = \frac{1}{2}$

Therefore, the slope is 2.

Rewrite the equation in slope-intercept.

$y = \frac{1}{2} x + b$

Calculate the y-intercept by substituting any given points in new rewritten equation.

$(x,y) = ( 0,2)$

I will be substituting these coordinate points in the equation.

$y = \frac{1}{2} x + b$

Substitute x = 0 and y = 5 in the equation.

$2 = \frac{1}{2} (0) + b \\ 2 = 0 + b \\ 2 = b$

Therefore the y-intercept is (0,2).

Rewrite the equation.

$y = \frac{1}{2} x + 2$

<h3>Answer</h3>

 $\large \boxed{y = \frac{1}{2} x + 2}$ 

If you have any questions related to the answer, feel free to ask me via comment.

3 0

3 years ago

Need help click picture please!!

IrinaK [193]

Answer:

= 37 cm^2

Step-by-step explanation:

To find the area of the figure, we will split it into 2 separate shapes.

We have a long skinny rectangle and a shorter wider rectangle.

The long skinny rectangle is 15 cm by 2 cm

The area is given by

A = l*w

A = 15*2 = 20 cm^2

The shorter wider rectangle is 7 cm by (3-2) cm or 7 cm by 1 cm

The side length of the bottom rectangle is found by subtracting the length of the skinny rectangle from the total side length.

( The drawing is not to scale)

The area is given by

A = l*w

A = 7 * 1 = 7 cm^2

To find the area of the figure, we add up the area of the two rectangles

A total figure = rectangle 1 + rectangle 2

= 30 + 7

= 37 cm^2

6 0

3 years ago