Ch 1
Solve the equation
3x + 7 = 25
x = 6
What is the slope between these 2 points?
Points: (2,3) and (6,11)
slope = 2
Graph the system and identify the solution (intersecting point)
y= x + 2
y = -x + 6
Solution
(2,4)
Is this equation a function
y = 2x + 6
yes or no?
Yes b/c of the form y=mx+b
Solve the Equation
2x + 5 = x + 17
x = 12
What is the slope between these 2 points?
Points: (5,−2) and (1,6)
Slope = -2
Graph the system and identify the solution (intersecting point)
y= -x + 5
y = 2x - 1
Solution (2,3)
Is this equation a function
y = 2x3 + 6
yes or no?
No b/c of the exponent
Solve the equation
6 + 3(x+2) = 24
x = 4
Write the equation for the line in slope-intercept form
slope, m = -6 and y-intercept, b= 9
y = -6x + 9
Graph the system and identify the solution (intersecting point)
y= x - 3
y = x + 1
No solution b/c parallel lines
Is this equation a function
y = 2/x
yes or no?
No b/c you cant have x as the denominator
Solve the equation
5(2x−3) + 7= 8x + 2
x = 5
Identify the slope and the y-intercept. Label each number in the equation
y = -2 + 3x
slope = 3
y-int = -2
Graph the system and identify the solution (intersecting point)
y= x + 2
y = x + 2
Infinite solutions or All solutions are possible
Is this equation a function
y = 2/3x + 6
yes or no?
Yes b/c it's the from y=mx+ b