3 x 4(hours) = 12
60 - 12 = 48
At 4am the temperature was 48 degrees
The slope is the coefficient of x, which is 10, and the y-intercept is the constant, which is 5.
Answer: I simplified it for you lol
Step-by-step explanation: Simplify the matrix.
19 + 266 inches
Answer:

Step-by-step explanation:
The equation for a line is y=mx + b where m represents the slope
If a line is perpendicular to another line, it's slope is the negative reciprocal of the other line's slope.
The reciprocal of -4 is 
And the negative of that would be 