Answer:
a) J':(-7,7) K':(-5,2) L':(-2,3)
b) The x coordinates remained the same, the y coordinates swapped from negative to positive.
Step-by-step explanation:
Aside: I'm using J', K', and L' to denote the new locations of J,K,L after the reflection.
When an object is reflected over the x-axis, it means it's positive points will flip to negative y space, and negative points will flip to positive y space.
That said, J, for instance, will have the same X-coordinate, but its Y-coordinate will flip from negative to positive. Doing this with every vertex mirrors the triangle over the X-axis.
Therefore, J:(-7,-7) will become J':(-7,7), and likewise with K and L becoming K':(-5,2) and L':(-2,3).
Answer:
A) Neither
Step-by-step explanation:
If two lines have same slope then they are parallel lines
If slope of line1* slope of line 2 = -1
The the two lines are perpendicular
In this question slope of line = 2\7
Slope of line 2 = 7\2
Answer:
Step-by-step explanation:
Use SOH-CAH-TOA
Sin(25º) = x/10 (x being the height of the triangle)
x= Sin (25º) (10)
x = 4.23
Now for the base:
Cos (25º) = x/10
x = cos(25º)(10)
x = 9.06
Now solve for the area using 1/2bh
19.2 in^2
The answer you have selected is correct :)
Answer:
x = 9
Step-by-step explanation:
The slope would be 6
Y -int would be 16
Through this we can find out that the slope-intercept form is
y = 6x + 16
insert 70 into y
solve for x
70 = 6x + 16
54 = 6x
9 = x