MATHEMATICS HIGH SCHOOL

Evaluate the function f(x) = x2 + 3x for both of the following: a. Find f(0)
b. Find f(4)
PLEASE ANSWER QUICK

Answers

Answer 1
Answer: f(x)=x²+3x

f(0)=0²+3*0=0+0=0

Answer: f(0)=0

f(4)=4²+3*4=16+12=28

Answer: f(4)=28

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If x is a real number such that x^3 =64 then x^2 + x=?

Answers

x^3=64

x= 3 square root of 64

x=4

x^2+ square root of x= 4^2+ the square root of 4= 16+2=18

Estimate the unit rate 3 yards of fabric for $13.47

Answers

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The graph of y=f(x) is shown below. What are all of the read solutions of f(x) = 0?

Answers

Answer:

0, -1, -3

Step-by-step explanation:

f(x) = y = height of the line plotted

if you treat the x axis as the "ground" or "floor"....you're looking for the point when the graph "hits" the "floor", meaning zero height.
The answers are 0,-1,-3

Find the area of triangle of 7m 9m

Answers

I think the answer is a=7b*9/2=31.5M

Solve.

4x – 6 = −3x + 8

Answers


                                    4x - 6  =  -3x + 8

Add  3x  to each side:  7x - 6  =  8

Add  6  to each side:    7x    =    14

Divide each side by 7:    x  =  2
4x – 6 = −3x + 8

4x + 3x = 8  +6
7x = 14
x = 2

Hope this helps you!!!! 

Graph this line using the slope and y-intercept:
y=–3x–3

Answers

Answer:

Check the attachment (image).

Step-by-step explanation:

The slope is -3, so you have to put a point on the y-intercept (where the line touches the y-axis), or -3. Then you have to put a point 3 down (so -6 on the y-axis), and 1 right (so 1 on the x-axis) since the slope is actually:
-3/1
...now you get a ruler and make a line running through those points (if on paper).
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