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Juli2301 [7.4K]
3 years ago
11

Write an equation in point-slope form for the line through the point (10, -9) with the given slope -2

Mathematics
1 answer:
Serjik [45]3 years ago
5 0
Point slope is y-y1= m(x-x1) where m is slope and x1 and y1 are the known coordinates.

y-(-9)=-2(x-10)
y+9=-2(x-10)

Final answer: y+9=-2(x-10)
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Answer:

c) 1

Step-by-step explanation:

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When Devon cashed a $450 check at the bank, the teller gave him 18 bills, all $20 bills and $50 bills. Which system of equations
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22. Solve 7x - 9 = 28+ 4(x - 1).<br> X=-3<br> X=3<br> x = 11<br> X=-11​
aleksley [76]

Answer:

c) x = 11

Step-by-step explanation:

Given equation: 7x - 9 = 28 + 4(x - 1)

<u><em>Steps:</em></u>

1. Distribute 4 through the parentheses:

7x - 9 = 28 + 4(x) + 4(-1)

7x - 9 = 28 + 4x - 4 [simplify]

7x - 9 = 24 + 4x

2. Subtract 4x from both sides:

7x - 4x - 9 = 24 + 4x - 4x

3x - 9 = 24

3. Add 9 to both sides:

3x - 9 + 9 = 24 + 9

3x = 33

4. Divide both sides by 3:

3x ÷ 3 = 33 ÷ 3

x = 11

5. Check your work:

7x - 9 = 28 + 4(x - 1) [substitute 11 for x]

7(11) - 9 = 28 + 4(11 - 1) [simplify]

77 - 9 = 28 + 4(10) [simplify]

68 = 28 + 40 [add]

68 = 68 ✔

Learn more here:

brainly.com/question/27844321

brainly.com/question/21222758

7 0
2 years ago
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A. Judy made a mistake between Steps 1 and 2
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the graphs below are both quadratic functions. the equation of the red graph is f9x)=x^2. which of these is the equation of the
Greeley [361]

Step-by-step explanation:

It's B. g(x)=\frac{1}{5} x^2 . Options A and C are both horizontal shifts and option D would only make the graph steeper, not wider.

Therefore, the answer is B.

Answer:

B.g(x)=\frac{1}{5}x^2

4 0
3 years ago
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