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gayaneshka [121]
3 years ago
12

Let's evaluate 3x + 4 when x=5

Mathematics
1 answer:
Vladimir79 [104]3 years ago
6 0
It is simple
Step 1) substitute x = 5 into the equation
3x +4
3(5) + 4 gives you 3 times 5 + 4
The answer is 15 + 4 which is 19

Now substitute a and b into the equation 3(a) + 4(b) when the a = 6 and b = 5
Hereby 3(6) + 4(5)
3 * 6 = 18 and 4* 5 = 20
18 + 20 = 38
The answer is 38

Now finally
Substitute a and b Into the equation
3(3) + 4(6)
9+ 24 = 33
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Write the slope intercept form of the equation of the line that passes through the point (4, 8) and has a slope of -2.
zhuklara [117]

The equation of the line is y = -2x + 16 which passes through the point (4, 8) and has a slope of -2.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The line that passes through the point (4, 8) and has a slope of -2.

On comparing the standard equation:

y = mx + c

Here m is the slope of the line and c is the y-intercept.

m = -2

y = -2x + c

Plug x = 4 and y = 8

8 = -2(4) + c

c = 16

y = -2x + 16

Thus, the equation of the line is y = -2x + 16 which passes through the point (4, 8) and has a slope of -2.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

8 0
1 year ago
What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
ludmilkaskok [199]
The answer is Y=-5/2x-1
7 0
3 years ago
Nothing to ask here thanks though
aksik [14]
So what is the question just comment on this I can help
6 0
3 years ago
PLEASE HELP!!!!!! A linear function has a y-intercept of -12 and a slope of 3/2. What is the equation of the line?
Evgesh-ka [11]

Answer:

A, y = 3x/2 - 12

Step-by-step explanation:

Use the equation y = mx + b.

m = 3/2

b = -12

y = 3x/2 - 12

7 0
3 years ago
Read 2 more answers
9. Choose whether the number is rational or irrational
lutik1710 [3]
The square root of 169=13 so it is rational
4 0
3 years ago
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