Find the slope of the line through (6,-7) and (4,-8).
Find the slope of the line through (0,5) and (5,5).
It is expected that 563 quadrillion thermal units of Btu (British thermal units) of energy will be consumed worldwide in 2015. In 2003, worldwide consumption was 421 quadrillion Btu. What is the expected rate of change in consumption from 2003 to 2015?
A sewing circle creates the same number of quilts every year to sell at the state fair. This year they created 3 more quilts than normal. This can be represented by y=x+3, where x is the number of quilts created in previous years and y is the total number of quilts created this year. What is the standard form of this linear equation?
An emperor penguin travels a distance of 70 miles each year back to the place of its birth. If that same penguin moves at a speed of 2.4 miles per hour, the function d=70-2.4t represents its distance, d, from its birthplace, t, hours after it has started its journey home. Find the zero of this function.
Solve 3x-12=3x+4
Determine whether y=2x-3 is a linear equation. If so, write the equation in standard form.
Find the x-intercept of 3y-x=6 (answer using a coordinate)
Find the y-intercept of 3y-x=6 (answer using a coordinate)