Answer:
Step-by-step explanation:
Use the slope-intercept formula: where m is slope and b the y-intercept.
Use the slope formula for when you have two points:
Rise over run is the change in the y-axis over the change in the x-axis. Insert values:
Simplify parentheses (negative+negative=positive)
Simplify
2 is the slope:
Now use one of the points to find the y-intercept by substituting the x and y values into the equation. Solve for b:
(4,7)
The y-intercept is -1. Insert into the equation. Change the + symbol to -:
Done.
Other method:
Factors of 28: 1, <em><u>2</u></em>, 4, 7, 14, 28
Factors of 30: 1, <em><u>2</u></em>, 3, 5, 6, 10, 15, 30
GCF(28, 30) = <em><u>2</u></em>
First, you need to have j on it own. Since j is over 4-8, you times both sides of the inequality so the /4-8 is canceled.
Your new inequality equation is j<4(4-8). Solve the bracket and then times the answer by 4.
~ j<4(-4)
~ j<-16
Base angle: x
Vertex angle: 4x - 6
In an isosceles triangle, the base angles are equal. The sum of the angles of a triangle equal 180°
Base angle + Base angle + vertex angle = 180°
x + x + 4x - 6 = 180
6x - 6 = 180
6x = 186
x = 31
Vertex angle: 4x - 6 = 4(31) - 6 = 124 - 6 = 118
Answer: 118°
Answer:70 i think srry if its wrong
Step-by-step explanation: