Answer:
Step-by-step explanation:
1.
A graph of linear function is a straight line.
Linear function in a slope-intercept form: y = mx + b
Answer: Equation 3: y = 12x + 17.2.
x|-1 | 0 | 1 | ? |
y| 4 | 7 |10| ? |
a slope:

We choose:

subtitute:

a slope-intercept form:

subtitute:

subtitute x = 2 to the equation (*):
Answer: (2, 13)3.
(-2; 7), (-5; 4)
the slope:


check other:

The conclusion: It's a linear function
Answer: It is a linear function because there is a constant rate of change in both the input and output values. 4.
y = 3x + 5 /look at the picture/
Answer: It is a linear function because its graph contains the points (0, 5), (1, 8), (2, 11), which are on a straight line.
check:
Answer:
6
Step-by-step explanation:
Answers and Step-by-step explanation:
Question 8:
Since angle BCD is opposite angle DAB, this means that they are similar angles as the shape is a parallelogram, and so BCD is 115 degrees, or answer D
Question 3:
We can use process of elimination on this question - The first choice is all squares are rhombuses, which is true. The second question is all rectangles are squares, which is not true, therefore the answer is B
Question 4:
m angle 2 is equal to 106, as it is similar to question 8, and angle 3 is equal to 360 (the total degrees of the shape) - 106 - 106, then divided by 2 and divided by 2 again.
This will equal to angle 3 being 37 degrees, and the answer will be C
Question 5:
We can draw a rectangle from this graph. We can also tell that, in theory, the diagonals are the same, that rules out answer B, and also 5x-5 = x+11
We can then find out x.
+5 on both sides
5x = x+16
-x on both sides
4x = 16
x = 4.
Therefore, each of the sides will be 4+11 = 15, and the answer being C