Question

somebody please I will fail help 9th grade algebra medal and fan!!!

Answer 1

What is the question?

Answer 2

1) For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. (hint: you need to find the “k” value) In order for y to vary directly with x, it must satisfy the equation y = kx. So, for the values, plug them in to see:
6= k(9)
8 = k(10)
10= k(11
X Y
6 9
8 10
10 11

2) For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. (Hint: you need to find the “k” value)
X Y
8 6
12 9
20 15

3) Graph -1/6 x-1/9 y=-1/3

4) Graph x=4
(Hint: put the equation in slope-intercept form)

5) The table shows the number of miles driven over time. Express the relationship between distance and time in simplified form as a unit rate: ___________ mph. Write a statement that interprets the relationship: _________________________________________________.
Time (hours) 3 5 7 9
Distance (miles) 183 305 427 549

6) Find the slope of the line. M= __________

7) What is the slope of the line? M= _____________
Hint: slope is rise/run or (change in y)/(change in x)




8) What is the slope of a line passing through the pair of points (-5, -6) and (3, -1)? Hint: slope formula is (y_2-y_1)/(x_2-x_1 )


9) What is the slope of a line passing through the pair of points (3/2,-10) and (3, 7/2)? Hint: slope formula is (y_2-y_1)/(x_2-x_1 )



10) Write an equation in point-slope form for the line through the given point with the given slope.
(3,2):m=4 Hint: Point-slope form is y-y_1=m(〖x-x〗_1)


11) The table shows the height of a plant as it grows. Write an equation in point-slope form that represents the plant’s height at any time. Determine the height of the plant after 1 year.
Time Height
2 8
4 15
6 22
8 29

12) Write each equation in standard form. (Hint: Standard form has three requirements)
a) y=-4/7 x+2 b) y=-0.3x+0.8

Answer 3

plz help @AFlyingMelon I promise in is not a test it is half of my study guide and if I fail it I will fail it is worth 30% of my grade plz

Answer 4

I do not know too much, but here is what I know:
1. Y does not vary directly with X.
2. Y is always 75% of X, so:\[Y = 0.75 \times X\]or\[Y = \frac{ 3}{ 4} \times X\]K would be 0.75(or 3/4), so the equation would be:
\[Y = KX\]or\[Y = K \times X\]
5. Since Speed equals Distance divided by Time(S = D/T), the vehicle is traveling at 61 mph. The unit rate would be: \[\frac{ 61 }{ 1 }\]The statement for the unit rate would be "For every 1 hour the vehicle travels, the vehicle will travel 61 miles."
I hope this helped, but maybe @thomaster will be able to help you.