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3 years ago

I need help with these two questions

Mathematics

1 answer:

Mandarinka [93]3 years ago

5 0

Answer:

(-2,-2)

Step-by-step explanation:

for question number 15...cordinated grid shows each equation...first equation is represented by straight line going upwards through +4 in y axis...(y=3x+4)...

point is....every point in this two lines represent a possible x and y value for each equation...and there is a point where these lines meet each other....in that point...x and y values are possible values for both equations.so answer is (-2,-2)...this cordination satisfy each pairs of equation...you can try using -2 for x in both equations and get -2 as the answer for y...that proves the point..try it for 16 quiz.good luck

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Anon25 [30]

Add 8 to both sides

12x = 40 + 8

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12x = 48

Divide both sides by 12

x = 48/12

Simplify 48/12 to 4

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Answer: A. 4

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2 years ago

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Example 2 (3x+11)=10

Bumek [7]

Answer:

x = -2

Step-by-step explanation:

2 (3x+11)=10

Divide each side by 2

2/2 (3x+11)=10/2

3x+11 = 5

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3x+11-11 = 5-11

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2 years ago

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Yanka [14]

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3 years ago

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What is f(-2) of the function given below? * f(x) = 3x2 - 4x + 1

slava [35]

Answer:

f(-2) = 21

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 4x + 1

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2 years ago

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timama [110]

Answer:

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Step-by-step explanation:

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