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AveGali [126]
3 years ago
11

Is this a linear function , why or why not ? explain y=x^2-1

Mathematics
1 answer:
kotykmax [81]3 years ago
8 0
If you graph out y = x^2 - 1, you'll see that it is a curved parabola. It is not a straight line. So visually this shows the equation is not linear. It's considered nonlinear.

Algebraically, the given equation does not fit the form y = mx+b which is slope intercept form. So this is more confirmation that we do not have a linear function.
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For what x-value(s) does cos(x) = 1?<br><br> -360°<br><br> 0°<br><br> 360°<br><br> all of the above
dlinn [17]
Cos(x) = 1 at 0 and 2pi 360 and -360 is the same angle as 2pi so all of the above if you start at 0 and make a complete circle (360) you will be back at point 0.

7 0
3 years ago
Please answer. :) ):) ) : ): ): ): ) :)
Irina18 [472]

Answer:

2/5, 8/20, 4/10,16/40

Step-by-step explanation:

40%

Percent means out of 100

40/100 = 4/10 = 2/5

Lets look at the choices

8/100 =4/50 =2/25  not equal

2/5  equal

8/20 = 4/10 =2/5 = equal

4/10 = 2/5 = equal

16/40 = 4/10 = 2/5 equal

4 0
3 years ago
Read 2 more answers
X/4 7
Alina [70]

Formula for area of a rectangle is the base x height.

3 0
3 years ago
Which expression is 12 times as large as the expression 7 plus 91?
Over [174]

Answer:

A

Step-by-step explanation:

here's how I got it A and C are similar but C will have a different answer because you will multiply 12*7 then add 91 that will equal 175 but it wants the answer that is 12 larger than 7 + 91. when it is in parenthesis it goes first so then you do 7+91 first and that is 98. then multiply 12*98=1176 and that is the correct answer because it is 12 times the sum of 7 and 91.

4 0
3 years ago
What is the x coordinate of the intersection of y=4x-10 and y=(x-2) to the power of 2 +2
aleksley [76]

Answer:

  4

Step-by-step explanation:

Equating the y-values gives an equation in x.

  4x -10 = (x -2)^2 +2

  0 = x^2 -4x +4 +2 -4x +10 . . . . . . . . eliminate parentheses, subtract 4x-10

  x^2 -8x +16 = 0

  (x -4)^2 = 0

  x = 4

The x-coordinate of the one point of intersection is x = 4.

6 0
3 years ago
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