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Mademuasel [1]
3 years ago
10

2. Graph the following equation: y = - 1/2 x + 4

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

Step-by-step explanation:

y = (-1/2)x + 4 is the equation of a straight line with y-intercept (0, 4) and slope -1/2.

To graph this, first plot the y-intercept (0, 4).

Recall that slope m = rise / run, and notice that the slope in this particular case is -1/2 = rise / run, or rise = -1 and run = 2.

Starting with your pencil point on (0, 4), move the point 2 units to the right (run = 2), arriving at (2, 4).  Next, move your pencil point 1 unit down, to (2, 3).

Draw a straight line through (0, 4) and (2, 3).

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Simplify the expression<br><br><br><br> (x + 8) + (3x + 10) + (-45)
sesenic [268]

Answer:

4x - 27

Step-by-step explanation:

x + 8 + 3x + 10 - 45

= 4x - 27

4 0
3 years ago
The graph below shows the velocity f(t) of a runner during a certain time interval:
Snezhnost [94]
When graphs are plotted, graphs as in the .jpeg image in attachment are obtained.
First graph is line going through ordered pair (point) (0,6) and pair (6,8).
The second graph is line going through ordered pair (6,8) and pair (8,0).
Intercept of these graphs is point (ordered pair) (6,8).
You see from the .jpeg image that the following is true:
Initial velocity of the runner is 6 meters per second (runner starts with this velocity), for a while he runs, velocity grows, then in the 6th second (time=6), runner starts to slow down and velocity starts to decrease, and runner stops totally at time = 8.
So runner stops after 8 seconds.
The 4th claim (sentence) is correct.

3 0
3 years ago
Read 2 more answers
Please help. and please explain the process too
denis-greek [22]
The polynomial as per the given of the problem is f(x)=3x²-21x+30
Find the roots of this polynomial:
 x₁=[-b+√b²-4ac)]/2a and x₂ =[-b-√b²-4ac)]/2a
Plug in : x₁ = [21+√(21²-4(3)(30)]/6 = [21+√81}/6 ; x₁ = 5
and x₂ = [21-√(21²-4(3)(30)]/6 = [21-√81]/6 ; x₂ = 2
 Remark: I don't understand where did you bring √5 , it should be 5
6 0
4 years ago
The probability that Edward purchases a video game from a store is 0.67 (event A), and the probability that Greg purchases a vid
ankoles [38]

Easy! The answer is B!

5 0
3 years ago
Read 2 more answers
Please help me understand and solve this​
ss7ja [257]

Step-by-step explanation:

just multiple them and you'll get the results and the results you got add them together

7 0
3 years ago
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