3 years ago

Which equation represents a direct variation?

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

Answer:

y= 1/2 x Im sure thats the answer.

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blsea [12.9K]

Answer:

Dop

Step-by-step explanation:

Calculus

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2 years ago

Write in y= mx + b form: a line through (-3,1) having the same y-intercept as the graph of x-2y=-4

MariettaO [177]

Step-by-step explanation:

Aight, so the same intercept

$- 2y = - 4 - x = = = > \\ y = \frac{1}{2} x + 2$

m=½

$y = \frac{1}{2} x + b = = = > \\ now \: let \: us \: replace \: the \: point \\ 1 = \frac{1}{2} ( - 3) + b = = = > \\ \frac{5}{2} = b$

soooo

$y = \frac{1}{2} x + \frac{5}{2}$

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2 years ago

What is the value of the discriminant?<br> 2K2 = 10k - 2

Phoenix [80]

Answer:

Step-by-step explanation:

Given a quadratic equation in standard form, ax² + bx + c = 0 : a ≠ 0

Then the discriminant is Δ = b² - 4ac

2k² = 10k - 2 ( subtract 10k - 2 from both sides )

2k² - 10k + 2 = 0 ← in standard form

with a = 2, b = - 10 and c = 2, thus

b² - 4ac = (- 10)² - (4 × 2 × 2) = 100 - 16 = 84

7 0

3 years ago

√2/k+√2=1/k-√2 leaving your answer in the form p+m√n

vesna_86 [32]

Answer: in decimal form=0.14644660

Step-by-step explanation:

4 0

2 years ago

Graph y+2 = -3/4(x+4)

Lera25 [3.4K]

Answer:

Slope: -3/4

y-intercept: (0,-5)

Step-by-step explanation:

Graph the line using the slope and y-intercept, or two points.

6 0

3 years ago

Read 2 more answers