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kherson [118]
3 years ago
8

Rewrite the equation y – 4x = –9 in slope-intercept form.

Mathematics
2 answers:
cestrela7 [59]3 years ago
7 0
D. you just add the 4x over on the other side
Vera_Pavlovna [14]3 years ago
3 0
The answer to your question is A. Y= -4x-9 because is you look at the pre written equation it shows that 4x is negative and that 9 is negative too. Also, if you rewrite an equation you have to isolate Y. Therefore A is the correct answer
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MN bisects PQ at point R. Which of the following is true about point R?
FrozenT [24]
The correct answer for this would be B
7 0
3 years ago
Read 2 more answers
Three more than twice a number r
sukhopar [10]

Answer:

2r + 3

Step-by-step explanation:

probably

8 0
3 years ago
The cost for an order of 100 kilograms of steel bars is $230. The cost for an order of 150 kilograms of steel bars is $320. Writ
luda_lava [24]

Answer:

y = 9x/5 + 50

Step-by-step explanation:

We are represent the information as coordinate (x,y)

If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)

Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;

(150, 320)

Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c

m is the slope

c is the intercept

Get the slope;

m = y2-y1/x2-x1

m = 320-230/150-100

m = 90/50

m = 9/5

Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c

230 = 9/5(100)+c

230 = 9(20)+c

230 = 180 + c

c = 230-180

c = 50

Get the required equation

y = mx+c

y = 9/5 x + 50

Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50

4 0
3 years ago
–5(3 – q) + 4 = 5q – 11
mrs_skeptik [129]

Answer:

0

Step-by-step explanation:

–5(3 – q) + 4 = 5q – 11

-15 +5q + 4 = 5q -11

-11 + 5q = 5q - 11

+5q - 5q = -11 + 11

0=0

6 0
3 years ago
Will mark brainliest
Free_Kalibri [48]

Answer:

it is the same

Step-by-step explanation:

7 0
2 years ago
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