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GrogVix [38]
3 years ago
8

How can I find the slope and Y- intercept for each equation

Mathematics
1 answer:
mixer [17]3 years ago
7 0
Answer:

You plug in numbers into the y=mx+b equation and solve for which ever one you are finding for.
m=slope
x=x intercept
b=y intercept
apply the numbers to this equation and solve or x
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What is the slope-intercept form of the equation of the line that passes through the points (−3, 2) and (1, 5) ?
madam [21]

Answer:

C

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 2) and (x₂, y₂ ) = (1, 5)

m = \frac{5-2}{1+3} = \frac{3}{4}, thus

y = \frac{3}{4} x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 3, 2), then

2 = - \frac{9}{4} + c ⇒ c = \frac{17}{4}

y = \frac{3}{4} x + \frac{17}{4} → C

4 0
3 years ago
30% of $50 is equal to?
Alex17521 [72]

Answer:

15

Step-by-step explanation:

5 0
3 years ago
Perform the following<br> f (x) = 4x2 + 5x + 5<br> g(x) = 8x + 6<br> Find (f + g)(x).
guapka [62]

Answer:

maya 6528

Step-by-step explanation:

$0rry so no alam

4 0
3 years ago
Scott burned 20 calories per minute jogging for x minutes and 5 calories per minute for biking for y minutes. He spent a total o
stiv31 [10]

Answer:

x = 112

Step-by-step explanation:

We can create two equations 1. one that calculates calories burned and 2.another that calculates minutes:

20*x + 5*y = 1200

x + y = 120

Then we can solve for x

x = 120 - y

then we can plug that into the top equation:

20(120 - y) + 5y = 1200

divide by 5:

4(120 - y) + y = 240

distribute:

480 - 4y + y = 240

and then do all that combining like factors what not and simplify and solve:

480 - 3y = 240

-3y = -240

y = 8

NOW WE CAN JUST PLUG IN THE ANSWER FOR Y TO FIND X

8+x =120

x = 112

7 0
3 years ago
Which line graph correctly reflects the information in the frequency table?
bekas [8.4K]
<h3>Answer: Choice B</h3>

Explanation:

You can use Excel to make the graph, but other free options work just fine. I used LibreOffice to make the graph shown below.

Each point on the line graph represents a frequency for a given time value. The first point being 4 units high, means there were 4 customers at 8:00 AM. Then there were 6 customers at 9:00 AM, meaning the next dot has a height of 6. And so on.

The graph shown below matches with choice B.

3 0
3 years ago
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