I get the slope of the parallel line to be -2 and then 1/2 for the perpendicular one
Answer:
-11 is your answer.
Step-by-step explanation:
Total measurements of interior angles in a triangle = 180°.
Note that the red square located on the bottom right angle signifies that it is a right angle, with a measurement of 90°. Set the equation:
Total measurement = (90) + (70) + (x + 31)
180 = x + (90 + 70 + 31)
180 = x + 191
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 191 from both sides:
180 (-191) = x + 191 (-191)
180 - 191 = x
x = - 11
~
The student didn’t make an error
Move variable to the left-hand side and change its sign
Move constant to the right-hand side and change its sign
Collect like terms -5a+2a= -3a
-3a=-9+12 Calculate the sum -9+12=3
-3a=3 Divide both sides of the equation by -3
And you should get a=-1
In my opinion
Answer:
slope=0, y-intercept=2
Step-by-step explanation:
Answer:
bottom left graph
Step-by-step explanation:
A proportional relationship is linear, represented by a straight line graph passing through the origin.
The graph on the bottom left is straight line passing through the origin.
