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tiny-mole [99]
4 years ago
14

Which equation is in slope intercept form and represents a line with the slope three through the point (9,-4)

Mathematics
1 answer:
beks73 [17]4 years ago
7 0

Answer:

y = 3x - 31

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = 3, thus

y = 3x + c ← is the partial equation

To find c substitute (9, - 4) into the partial equation

- 4 = 27 + c ⇒ c = - 4 - 27 = - 31

y = 3x - 31 ← equation in slope- intercept form

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Find the range of the function y=1/2x+3 when the domain is (-2,0,2,4)
Triss [41]

Answer:

{2,3,4,5}

Step-by-step explanation:

Domain is the set of x-values for which the function is defined.

Range is the set of y-values for which the function is defined (set of values corresponding to the set of x-values).

The function is given as  y=\frac{1}{2}x+3

The domain is (-2,0,2,4)

That means, we need to plug-in the 4 numbers given into x of the function and find the 4 corresponding y values (the range).

So, lets do this:

putting x = -2,

y=\frac{1}{2}(-2)+3=2

putting x = 0

y = 3

putting x = 2

y=\frac{1}{2}(2)+3=4

putting x= 4

y=\frac{1}{2}(4)+3=5

Thus, the range is {2,3,4,5}

5 0
3 years ago
At the supermarket Pryslide, 500ml bottles of shower gel cost $7 each. However, since the beginning of last week there has been
max2010maxim [7]

Answer:

I strongly believe that the question requires us to calculate the cost of one 500ml bottle of shower gel based on this special offer of buy 2 bottles get another for just $2.

The correct answer is $5.33

Step-by-step explanation:

From a buyer's point of view,a 500ml bottle of shower gel cost is the $7 multiplied by 2 bottles plus $2 multiplied by 1 bottle all divided by 3 bottles.

The rationale for the denominator is that the total number of bottles bought would then equal 3 bottles .

Cost per bottle =($7*2)+($2*1)/3=$16/3=$5.33

Instead of a bottle costing $7,under the special arrangement a bottle would simply cost $5.33

7 0
4 years ago
Don't worry about the pics at the bottom plz help
TiliK225 [7]
First one: x>5
second one: x≥5
im pretty sure its right
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6 0
3 years ago
If two angles are supplementary and congruent the measure of each angle is 90 degrees true or false ?
Rasek [7]
True because a straight line has 180 deg and the half of that is 90 deg

3 0
3 years ago
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MakcuM [25]

Answer:

x=-30

Step-by-step explanation:

................

8 0
3 years ago
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