(5,4), m
= 4
what is the equation of the line that passes the given point and has the given slope?

y = 4x - 16

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 4, thus

y = 4x + c ← is the partial equation

To find c substitute (5, 4 ) into the partial equation

4 = 20 + c ⇒ c = 4 - 20 = - 16

y = 4x - 16 ← is the equation of the line

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.