The point-slope form of the equation for a line can be written as
... y = m(x -h) +k . . . . . . . for a line with slope m through point (h, k)
Your function gives
... f'(h) = m
... f(h) = k
a) The tangent line is then
... y = 5(x -2) +3
b) The normal line will have a slope that is the negative reciprocal of that of the tangent line.
... y = (-1/5)(x -2) +3
_____
You asked for "an equation." That's what is provided above. Each can be rearranged to whatever form you like.
In standard form, the tangent line's equation is 5x -y = 7. The normal line's equation is x +5y = 17.
8 bottles of juice and 4 bags of chips? What would it cost to get a
bottles of juice and y bags of chips?
Total cost, 8 bottles of juice and 4 bags of chips:
Total cost, x bottles of juice and y bags of chips:
y
Answer:
$12.80
Step-by-step explanation:
The cost to get 8 bottles of juice and 4 bags of chips will be:
= 8($.105) + 4($1.10)
= $8.40 + $4.40
= $12.80
The cost for x bottles of juice and y bags of chips will be:
= (1.05 × x) + (1.10 × y)
= 1.05x + 1.10y
m∠R=
I know I need to use the LAW OF SINES and LAW OF COSINES. I know I need a law of cosines but I don't know how to put the numbers in right place.
Answer:
Option (d) is correct.
Step-by-step explanation:
Given : Equation of line 3x + y = -2
We have to choose the correct graph for the given equation of line 3x + y = -2
Consider the given equation of line 3x + y = -2
We find the points that satisfies the equation of line and plot these to find the equation of line.
Put y = 1
We get
3x + 1 = -2
3x = -2 -1 = -3
x = -1
also, put y = 4
We get
3x + 4 = -2
3x = -2 -4 = - 6
x = - 2
also, when x = 0 , we get, y = -2
We get three points (-1, 1), (0,-2) and (-2, 4)
Now plot these point to obtain graph as shown below.
2
+ 3x - 4, and the speed of the walkway is W(x) = x
2 - 4x + 7.
20. What is his total speed as he walks along the moving walkway?
21. Carlos turned around because he left his cell phone at a restaurant.
What was his speed as he walked against the moving walkway?
His speed was 2x² + 7x - 11 as he walked against the moving walkway.
Function is a type of relation, or rule, that maps one input to specific single output.
We are given that Carlos is walking on a moving walkway. His speed is given by the function
C(x) = 3x² + 3x - 4,
The speed of the walkway is W(x) = x² - 4x + 7.
The total speed as he walks along the moving walkway is;
x² - 4x + 7+ 3x² + 3x - 4,
= 4x² - x + 3,
Given Carlos turned around because he left his cell phone at a restaurant.
If he walked against the moving walkway
- x² + 4x - 7 + 3x² + 3x - 4,
2x² + 7x - 11
Learn more about function here:
#SPJ2
A.14.00
B.14.75
C.15.75
D.13.50
Answer:
(2, - 5)
Explanation:
The line y = -1 is horizontal: parallel to the y-axis.
The point B (2,3) is above the line y = - 1 at a distance equal to the y-coordinate of B (y = 3) less - 1:
Δy = 3 - ( - 1) = 4
When the point B (2,3) is reflected over the line y = -1, the x-coordinate does not change. The image will be 4 units down the line y = -1, thus the y-coordinate will be - 1 - 4 = - 5.
Hence, the coordinates of the vertex B' are x = 2, y = - 5: (2, - 5).