Question

*£ HELP PLS !! URGENT!! AFFECT MY GRADE!! *Problem 5.3

Here are three lines that intersect at
one point.
Laila wrote the equation
x + 18 = 90.
Describe the error that Laila might
have made.

Answer 1

Laila's error is not taking into account the slope of the line when writing the equation.

Step-by-step explanation:

Laila's error in writing the equation x + 18 = 90 is that she did not take into account the slope of the line. The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept. In this case, Laila should have written the equation as x + 18 = 3x + 9, taking the slope into consideration.

Answer 2

Laila assumed that the lines that formed the angles x and 18° added up to 90. This is in fact false because of the lack of the square marking to signify it as a right or 90 degree angle.