The x-intercept is -2, since the line intersects with the x-axis at (-2, 0).
The y-intercept is 1, since the line intersects with the x-axis at (0, 1).
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No, it would only work with similar terms. However, you would be able to multiply them, like 2x times 2y = 4xy.
Step-by-step explanation:
step 1
The service fees differ by $1. The per-check fees differ by $0.01. A person would have to write 1/.01 = 100 checks for the two accounts to cost the same.
Slope-intercept form: y = mx + b
(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)
For lines to be perpendicular, their slopes have to be the negative reciprocal of each other. (Basically flip the sign +/- and the fraction[switch the numerator and the denominator])
For example:
Slope = 
Perpendicular line's slope =
or -3
Slope = -2 or 
Perpendicular line's slope = 
The given line's slope is
, so the perpendicular line's slope is -3. Now that you know the slope, substitute/plug it into the equation:
y = mx + b
y = -3x + b To find b, plug in the point (1, 9) and isolate/get the variable "b" by itself in the equation
9 = -3(1) + b Add 3 on both sides to get "b" by itself
9 + 3 = -3 + 3 + b
12 = b
y = -3x + 12