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Helen [10]
3 years ago
14

0.3 in the form a and b

Mathematics
1 answer:
konstantin123 [22]3 years ago
5 0
The only way I am can you I love my you can be do not know want r a to a party in for you every night before a federal court and then it will
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Help please! Could you explain it too?
Anettt [7]

Answer:

a) not proportional

b) proportional; k = -\frac{3}{5}

Step-by-step explanation:

a) for any proportional equation, the line must pass through the origin. The equation in a) is y = 4x + 1, and the '+1' is the y-intercept. This means that the line does not pass through the origin, so x and y cannot increase by the same amount (i.e. they are not proportional).

Another way to determine this is is to use the y = kx base. If you have an equation that fits that it's likely proportional.

Here, if the equation was only y = 4x then it'd be proportional because u can see that k = 4. This is not the equation though, and the 4x + 1 doesn't fit to the y = kx formula so it can't be proportional.

b) straight away you can see that there's no 'c' term (y = mx + c) which means the y-intercept is 0, so the line passes through the origin. While this does not immediately mean the line is proportional, you can make sure that it is by checking it fits with the y = kx equation.

y = -(3/5)x fits with y = kx, with k being -3/5

3 0
2 years ago
Charlotte finds two landscape gardeners online: the first charges a fixed fee of $20 per job plus $15 per hour for labor, while
Damm [24]

$15 per hour for labor plus $5 per hour for labor

6 0
3 years ago
Read 2 more answers
For a and b, write an equation in slope-intercept form that meets the given criteria
MariettaO [177]

Answer:

A) y = -2x

B) y = x - 3

Step-by-step explanation:

A) you need to have a negative 'x' coefficient and no y-intercept

B) you need to have a positive 'x' coefficient and a negative y-intercept

8 0
2 years ago
Gene made a two-digit code. The first digit is odd. How many possible codes can he choose from?
mylen [45]
Digit 1:1,3,5,7, or 9.
Digit 2: 0,1,2,3,4,5,6,7,8 or 9.
4*10= 40 possible codes.
4 0
3 years ago
Write the standard equation of the circle if the center is (-1,2), and a point on the circle is (2,6).
ladessa [460]

Answer:

  • (x + 1)² + (y - 2)² = 25

Step-by-step explanation:

<u>The center is given:</u>

  • (-1, 2)

<u>Find the radius, the distance from the center to a point (2, 6)</u>

  • r² = (2 - (-1))² + (6 - 2)² = 3² + 4² = 25
  • r = √25 = 5

<u>Use circle formula:</u>

  • (x - h)² + (y - k)² = r²
  • (x - (-1))² + (y - 2)² = 5²
  • (x + 1)² + (y - 2)² = 25

8 0
3 years ago
Read 2 more answers
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