Solving
2x=-10
x=-5
Kevin has $20 and earns $4 per hour babysitting
Ean has $5 and earns $7 babysitting.
When will they have the same money and how much?
After 5 hours they both have $40
Find the next three terms
7, 9, 11...
13, 15, 17
y=2x+4
Is (-4,12) a solution? Explain your reasoning
No because
12=2(-4)+4
12 does not = -8+4
y=-2x+4
What is the slope and y intercept
slope -2 y-intercept (04,)
4x-7+2x=17
x=4
y=4x+10
y=2x+12
(1,14)
Find the first three terms
t(1)=4
t(n+1)=3t(n)
4, 12, 36
y=4x+10
y=2x+12
Is (3, 22) a solution? explain your reasoning
no because doesn't work for the second equation
(4, 5) (6, 10)
what is the slope
2/5
-(x+2)=10
x=-12
Write a system for the situation
Mr. Williams is hosting a lap-a-thon. So far Drew has raised $20 and earns $2 for every lap she runs. Ali has $10 and earns $5 for every lap he runs
y=20+2x
y=10+5x
t(n)=2n+4
6, 8, 10
x=3
2x+y=10
(3,4)
What is the slope
(-2, 5) (-1, -6)
-1/11
solve for y
y-2x=10
y=10+2x
Describe how to find the solution to a system from a graph and a table
on a graph the solution is where the lines intersect. A table means both equations have the same x and y values
What is the explicit form
an=an+1+7
a1=5
an=7n-2
solve the system
y=2x+1
2y+3x=16
(2,5)
If the slope is 3 and a point on the line is (1, 7) what is b
y=3x+b
b=4
solve for y
2x-2y=10
y=x-5
y=6x-11
y=4x+12
Solve the system
(11.5, 58)
What are the next three terms
1, 4, 9...
16, 25, 36
Write a system of equations that fits the scenario
There are a total of 55 points scored in a football game. You get 6 points for a touchdown and 3 points for a field goal. The number of field goals is one more than twice the number of touchdowns. How many field goals and touchdowns were there?
f=1+2t
55=6t+3f
if the slope of a line is 2 and a point on the line is (3, 7) what is the y-intercept (b)?
y=2x+b
b=1