Answer:

Step-by-step explanation:
y = x² - 7
Add 7 to both sides.
y + 7 = x²
Take square root on both sides.
±√(y + 7) = x
Switch variables.
±√(x + 7) = y
60.
A. 3
B. 12
C. 3
61. Plug in f(4) into each equation
(Example: f(x)=x-3 so now it would become
f(4)=x-3 so now plug in 4 for x in each equation A to D, so f(4)=4-3, then f(4)=1
A. f(4)=1
B. f(4)=1/625
C. f(4)=0
D. f(4)=2
You need the angle of the line between the shadow and the line from the extreme of the shadow to the cup ot the tree.
Suppose that the angle is the same of a right triangle with a base of 5 ft and a tall of 2 ft.
=> 2/5 = x / 30ft => x = 30ft * 2 / 5 = 12ft
=> The tree is 12 ft tall.
And the two triangles are similar (they have same angles).
<span>2 1/6 – 5 2/3
=</span><span>2 1/6 – 5 4/6
= - 3 3/6
= -3 1/2
answer
</span><span>C. -3 1/2</span>
Answer:Equation of the line is:y = 1.2x + 3.2
Explanation:The general form of the linear equation is:y = mx + c
where:
m is the slope
c is the y-intercept
1- getting the slope:The slope of the line can be calculated using the following formula:
m =

We are given the points:
(-6,-4) representing (x1,y1)
(4,8) representing (x2,y2)
Substitute with the given points in the above equation to get the slope as follows:
m =

The equation of the line now is:
y = 1.2x + c
2- getting the y-intercept:To get the value of the c, we will use any of the given points, substitute in the equation and solve for c.
I will use the point (4,8) as follows:
y = 1.2 x + c
8 = 1.2(4) + c
c = 16/5 = 3.2
Therefore, the equation of the line is:
y = 1.2x + 3.2
Hope this helps :)