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STatiana [176]
3 years ago
15

Plz explain this clearly to me, I'm struggling

Mathematics
1 answer:
Deffense [45]3 years ago
6 0
They give you a table values that show different points on a line. Using these points they want you to figure out an equation for the line and use that to find the intercepts.

Now, to write this equation we first must look for the slope. Slope is the change in y (rise) over the change in x (run).

Looking at the chart we see x increases by 3 and that y decreases by 6 each time. When putting rise over run, we would make six negative because it's going down.

-6/3 = -2. so that's our slope. we will use this to setup out equation in slope intercept form.

slope intercept follows the format of y = mx + b. where m is the slope and b is the y intercept.

when we look for the y intercept, we are really solving for b. So in our equation y = -2x + b, we can solve this by taking a point from the line given in the table and insert it in. such as (8,2).

We would put: 2 = -2(8) + b
2 = -16 + b
18 = b. so our y int is (0, 18) x is zero because anypoint on the y axis has 0 x.

to find our x int, we set y to 0. so we get:
0 = -2x + 18
-18 = -2x
x = 9

so our x int is (9,0) y is zero because anypoint in the x axis has a y of 0.
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Pls help me idk what this is
Margaret [11]

Answer:

B. -6 ≤ y ≤ 9

General Formulas and Concepts:

<u>Algebra I</u>

  • Range is the set of y-values that are outputted by function f(x)

Step-by-step explanation:

According to the line in the graph, our y-values span from -6 to 9. Since both are closed dot, they are inclusive in the range:

Range: [-6, 9] or -6 ≤ y ≤ 9

6 0
4 years ago
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Help me please!!!!!!!!!!!!!!!
irina [24]

Answer:

Interior = 60°

Exterior = 120°

Step-by-step explanation:

A triangle has 180° in total.

We have 2 angles, 70 and 50

70 + 50 = 120

For Angle U, we do 180-120 = 60

So the interior angle is 60°

A line is straight and is 180°

With angle U being 60°, and being on a straight line, 180-60 = 120

So exterior angle is 120°

6 0
4 years ago
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A tree is 7 ft tall when it is planted and this type of tree grows two feet per year. How tall will the tree be in 6 years? How
s344n2d4d5 [400]

2x+7=?

X=6

2(6)+7=

12+7=19

In six years, the tree will be 19ft

2x+7=44

Minus seven on both sides

2x=37

Divide two from both sides

X=18.5

Thus, it will take 18 and a half years for the tree to reach 44ft

4 0
4 years ago
How many multiples of $6$ are between $100$ and $500$?
lapo4ka [179]

ANSWER

65

EXPLANATION

This will form a sequence with first term:

a_{1} = 102

with constant difference d=6 and last term

l = 486

The last term is a term in the sequence, therefore;

l=a_1+d(n-1)

486=102+6(n-1)

486 - 102 = 6(n-1)

Simplify the LHS

384= 6(n-1)

Divide both sides by 6.

64=n-1

64 + 1 = n

Therefore

n = 65

Hence there are 65 multiples of 6.

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