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3 years ago

What is the value of 7x^2 + 3x + 4 when x=2?

Mathematics

2 answers:

Nonamiya [84]3 years ago

8 0

Answer:

Step-by-step explanation:

substitute the value of the variable into an equation, then simplify

DerKrebs [107]3 years ago

3 0

Answer:

Step-by-step explanation:

To find the value of 7x^2 + 3x + 4 when x=2. We have to plug in x. So plugging x in, we have

7(2)^2 +3(2) +4

and this becomes

7(4) + 6 +4

8(4)+6

which is 38

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12. Find the slope and y-intercept of the line. y= 1/5x-8

eduard

Hello and Good Morning/Afternoon:

Let's take this problem step-by-step:

What does the problem want us to find:

slope
y-intercept

Let's gather the information:

⇒ the information given: y = 1/5 x - 8

⇒ the line is in slope-intercept form

⇒ means:

⇒ coefficient in front of 'x' is the slope

⇒ constant is the y-intercept

slope is 1/5
y-intecept is -8

Answer:

Slope is 1/5
y-intercept is -8

Hope that helps!

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melamori03 [73]

Answer:

Step-by-step explanation:

Method 1:

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