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lutik1710 [3]
3 years ago
11

Write Algebraic Expressions

Mathematics
1 answer:
Anna71 [15]3 years ago
6 0
X-9=Tony Her amount minus the nine fewer dollars is his amount.
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Need help with two questions!!
eimsori [14]

Couple things to note:

  1. Slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
  2. Slope can be calculated using any two points on a line and the formula y₁ - y₂ / x₁ - x₂.

For the first problem, we know the slope of Function A is 6 (refer to slope-intercept form above). To compare the slopes of Function A and Function B, first find the slope of Function B.

Use y₁ - y₂ / x₁ - x₂. Two points on the line are (0, 1) and (-1, -2). Plug these into the formula accordingly and solve for slope.

y₁ - y₂ / x₁ - x₂

1 - (-2) / 0 - (-1)

1 + 2 / 0 + 1

3 / 1

3

The slope of Function B is 3. This is half of 6 (the slope of Function A), so the correct answer to question 1 is the first option: Slope of Function B = 2 × Slope of Function A.

For the second problem, substitute m and b in y = mx + b according to the graph. b is the y-intercept (the point at which the line intersects the y-axis); it is (0, -4), or -4. This gives us

y = mx - 4

We must now find m. Follow the same steps above to find slope. Our two points are (-2, 0) and (0, -4).

y₁ - y₂ / x₁ - x₂

0 - (-4) / -2 - 0

0 + 4 / -2

4 / -2

-2

Substitute.

y = -2x - 4

The first option is the correct answer.

5 0
3 years ago
Read 2 more answers
Evaluate 2(x - 4) + 3x - x2 for x = 2.<br> O A. -6<br> O B. -2<br> O C. 6<br> O D. 2
Olenka [21]

Answer:

B. -2

Step-by-step explanation:

2(x - 4) + 3x - x2

2(2 - 4) + 3(2) - (2)2

2(-2) + 6 - 4

-4 + 6 - 4

-8 + 6

-2

8 0
3 years ago
If you need more Spad
aksik [14]

Answer:

Just convert the number to the third digit and the answer will be b

6 0
3 years ago
Paul is taking inventory of unsold ladies’ dresses from last month. The following matrix shows how many of each dress were left
Allisa [31]

Answer:

A

Step-by-step explanation:

Just add both matrices

5 0
3 years ago
Read 2 more answers
Help ASAP do both questions for 10 points
zlopas [31]

Answer:

Step-by-step explanation:

I'm guessing A and J. Makes the most sense.

5 0
3 years ago
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