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PIT_PIT [208]
3 years ago
11

What is the correct value of f(-1) if f(x) = 2x2 – 3x – 9

Mathematics
2 answers:
schepotkina [342]3 years ago
8 0

I hope this helps! Let me know if I got anything wrong or if you need me to explain it.

Zina [86]3 years ago
4 0

Answer:

-is a 4x ala 2 -3x -9

-or 4x2 -3x1-9x

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The gradient of the line y= -2x -3​
N76 [4]

Answer:

-2

Step-by-step explanation:

The equation of the line is written in y=mx+c form, where m is the gradient and c is the y-intercept.

In this case, your m is a -2 and your c is a -3.

Hence the gradient of the line is -2.

5 0
3 years ago
Is 2x and 5x^2 like terms?
ki77a [65]

No, they are not like terms because they cannot be added together. 5x^2 is squared, whereas 2x is not. Though they both have x variables attached to them, they are not like terms because one is squared and the other is not. Examples of like terms include 5 and 8, 4y and 7y, 8z^2 and 10z^2.

Hope this helps!! :)

7 0
3 years ago
A line with a slope of -1 passes through the point (0,0). What is its equation in slope-intercept form?​ Please answer quickly.
rusak2 [61]

Answer:

y = -x

Step-by-step explanation:

The line has a slope of -1 and it passes through point (0,0)

Taking another point (x,y) on the line;

Slope = change in y ÷ change in x

For our case; slope = \frac{y - 0}{x - 0} = -1

Cross multiplying this gives;

y = -x

4 0
3 years ago
X-y=1,y=5<br> What is the answer to this problem ?
Karo-lina-s [1.5K]

Answer: x = 6 y = 5

Step-by-step explanation: coz I juss know

8 0
3 years ago
Read 2 more answers
A total of 326 adult and student tickets were sold for a high school play. The ticket prices were $8 for adults and $5 for stude
Trava [24]

Answer:

212 tickets were sold

Step-by-step explanation:

a (adult) + s (student) = 326

8a + 5s = 1972

-5(a + s = 326)

-5a-5s=1630

3a/3 = 342/3

a = 114

114 + s = 326

s = 212

4 0
3 years ago
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