Answer:
Not perpendicular
Step-by-step explanation:
Convert it to y-intercept form first:
5x - 4y = -1
-4y = -5x - 1
y = 5/4x + 1/4
4x - y = -9
-y = -4x - 9
y = 4x + 9
y = 5/4x + 1/4
y = 4x + 9
From the slopes, they are not considered perpendicular because one of the line slope is not a negative reciprocal of the other line slope.
Answer:
The lines are not perpendicular.
Step-by-step explanation:
If the lines are perpendicular, the product of the slopes should be -1.
These equations are in standard form (Ax + By = C), so we can easily find the slopes through using equation: slope= - A / B
For line 5x−4y=−1,
slope = -A / B
= - 5 /- 4
= 5/4
For line 4x−y=−9
slope = -A / B
= - 4 / -1
= 4
Now multiply the slopes to find the product:
5 /4 x 4
= 5
Since 5 ≠ -1, the lines are not perpendicular.
