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baherus [9]
3 years ago
9

Evaluate x2 + 3x – 7+ 8 when x = 4.

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
4 0

Answer:

29

Step-by-step explanation:

Substitute 4 for x into the expression x^2+3x−7+8 and then simplify using the order of operations.

4^2+3(4)−7+8

16+12−7+8

29

Karo-lina-s [1.5K]3 years ago
3 0

Answer:

29

Step-by-step explanation:

Since they have given you x = 4, simply sub it into the equation,

(4)^2 + 3(4) - 7 + 8

=  29

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jek_recluse [69]

Answer:

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Vertical Intercept: (0,7)

x^1=-7 , x^2= -1

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A line passes through the point (3,2) and (6,2) a write an equation for the line in point-slope form rewrite the equation in sta
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Determine the equation of each line with the following properties:
iris [78.8K]

Answer:

a) y =2/3 x + 7.

b) x = -1

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d) y = -3/2 x + 5/2.

Step-by-step explanation:

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b) y can take any value but x is always -1.

c) Slope m = (-1-3)/ (1 - -4)

= -4/5

Using point-slope form where m = -4/5 and x1 y1 = 1 , -1:

y - y1 = m(x - x1)

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y = mx + b

4 = -3/2 * -1 + b  where b = the y-intercept.

4 = 3/2 + b

b = 4 - 3/2 = 5/2.

The equation is  y = -3/2 x + 5/2.

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Answer:

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Step-by-step explanation:

How is this math?

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